:root {
  --color-bg: #18102c;
  --color-text: #fff;
  --color-muted: #a39fab;
  --color-primary: #cd1cfa;
  --color-primary-contrast: #fff;
  --color-secondary: #ddd6fe;
  --color-accent: #ff289f;
  --color-gradient: linear-gradient(to right, #f9bffe, #bfefff);
  --font-base: "Lato", "Noto Sans JP", sans-serif;
  --font-secondary: "Jost", sans-serif;
}

html { font-size: 62.5%; }

body {
  font-family: var(--font-base);
  font-size: 1.6rem;
  color: var(--color-text);
  background: var(--color-bg);
  font-feature-settings: "palt";
  letter-spacing: 1px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============== Common ============== */
.sec__head { max-width: 1280px; padding: 0 16px; margin: 0 auto 80px; }
.sec__title { display: inline-block; font-family: var(--font-secondary); font-size: 4.8rem; font-weight: 500; background: var(--color-gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sec__subtitle { font-size: 1.8rem; margin-top: 8px; }
.sec__container { max-width: 1200px; padding: 0 16px; margin: 0 auto; }

@media (max-width: 768px) {
  .sec__head { margin: 0 auto 40px; }
  .sec__title { font-size: 3.2rem; }
  .sec__subtitle { font-size: 1.6rem; }
}

.btn { display: inline-flex; align-items: center; font-size: 1.6rem; font-weight: 700; letter-spacing: .1em; color: #111; border-radius: 999px; border: 1px solid #fff; background-color: #fff; padding: 16px 56px; transition: .3s ease; }
.btn:hover { color: #fff; background-color: transparent; }
.btn--line { color: #fff; background-color: transparent; }
.btn--line:hover { color: #111; background-color: #fff; }

@media (max-width: 768px) {
  .btn { font-size: 1.6rem; }
}

.pc-none { display: none; }
.sp-none { display: revert; }

@media (max-width: 768px) {
  .pc-none { display: revert; }
  .sp-none { display: none; }
}

.btn-arrow { position: relative; font-size: 1.6rem; font-weight: 700; line-height: 1.25; padding-left: 20px; transition: .3s; }
.btn-arrow::before { content: ""; margin: auto; position: absolute; top: 5px; left: 0; width: 10px; height: 10px; border-top: 3px solid #ff289f; border-right: 3px solid #ff289f; transform: rotate(45deg); }
.btn-arrow:hover { color: #ff289f; }
.btn-bold { font-size: 1.6rem; font-weight: 700; line-height: 1.25; transition: .3s; }
.btn-bold:hover { opacity: .5; }

.bullet { }
.bullet > li { position: relative; padding-left: 1em; font-weight: 700; line-height: 1.25; margin-bottom: 16px; }
.bullet > li:last-child { margin-bottom: 0; }
.bullet > li::before { content: ""; position: absolute; top: 9px; left: 0; width: 8px; height: 1px; background: #9ca3af; border-radius: 1px; }
.bullet a { color: inherit; text-decoration: none; transition: opacity .3s ease; }
.bullet a:hover { opacity: .5; }

/* ============== Block: hero ============== */
.hero { background: #18102c url("../../assets/img/content/kv-bg.webp") no-repeat top center; background-size: 100% auto; overflow: auto; }
.kv__container { max-width: 1200px; padding: 0 16px; margin: 0 auto; }
.kv__img { width: 100%; height: auto; display: block; }
.kv__img--sp { display: none; }

@media (max-width: 768px) {
  .kv__container { padding: 0; }
  .kv__img--pc { display: none; }
  .kv__img--sp { display: block; }
}

/* ============== Block: intro ============== */
.intro { padding: 80px 0; background: rgba(0,0,0,.15); }
.intro__heading { font-size: 4.8rem; font-weight: 400; line-height: 1.25; color: var(--color-secondary); margin-bottom: 40px; }
.intro__desc { font-size: 1.8rem; line-height: 2; }
.intro__desc p + p { margin-top: 1em; }

@media (max-width: 768px) {
  .intro { padding: 40px 0; }
  .intro__heading { font-size: 2.4rem; font-weight: 700; margin-bottom: 30px; }
  .intro__desc { font-size: 1.6rem; line-height: 1.75; }
}

/* ============== Block: program ============== */
.program { padding: 80px 0; }
.program__row { display: flex; gap: 32px; margin-bottom: 48px; padding-top: 0; border-top: 0; }
.program__time { font-family: var(--font-secondary); font-size: 3.6rem; text-align: right; border-right: 2px solid; border-image: linear-gradient(to bottom, #f9bffe, #bfefff) 1; flex: 0 0 160px; padding-right: 32px; }
.program__body { flex: 1; min-width: 0; }
.program__text { font-size: 2rem; font-weight: 700; padding-top: 5px; margin-bottom: 8px; }
.program__title { list-style: none; margin: 0; padding: 0; }
.program__kicker { font-size: 1.6rem; margin-bottom: 12px; }
.program__heading { font-size: 3rem; font-weight: 700; line-height: 1.25; color: #f9bffe; margin-bottom: 12px; }
.program__heading span { font-size: 2.4rem; }
.program__lead { font-size: 1.8rem; line-height: 1.5; }
.program__notes { font-size: 1.6rem; margin-bottom: 40px; }
.program__speakers { display: flex; flex-wrap: wrap; gap: 30px; margin-top: 20px; }
.speaker-card { width: calc((100% - 30px * 2) / 3); }
.speaker-card__link { display: block; height: 100%; transition: .3s; text-decoration: none; color: inherit; }
.speaker-card__image img { display: block; width: 100%; height: auto; border-radius: 16px; }
.speaker-card__name { font-size: 2rem; font-weight: 700; margin-top: 16px; }
.speaker-card__role { font-size: 1.6rem; line-height: 1.5; margin-top: 8px; }

@media (max-width: 900px) {
  .program__row { flex-direction: column; gap: 16px; margin-bottom: 40px; border-top: 1px solid #523e6c; padding-top: 40px; }
  .program__time { text-align: left; border-right: 0; padding-right: 0; font-size: 3rem; flex: none; }
  .program__heading { font-size: 2.4rem; }
  .program__heading span { font-size: 1.8rem; }
  .program__lead { font-size: 1.6rem; }
  .program__speakers { gap: 32px; }
  .speaker-card { width: calc((100% - 32px) / 2); }
}

@media (max-width: 768px) {
  .program { padding: 40px 0; }
  .program__row { padding-top: 32px; margin-bottom: 32px; }
  .program__heading span { display: block; }
  .program__speakers { gap: 16px; }
  .speaker-card { width: calc((100% - 16px) / 2); }
  .speaker-card__name { font-size: 1.6rem; margin-top: 12px; }
  .speaker-card__role { font-size: 1.4rem; margin-top: 4px; }
}

/* ============== Block: event ============== */
.event { padding: 80px 0; background: rgba(0,0,0,.15); }
.event__heading { font-size: 3rem; font-weight: 700; line-height: 1.25; color: var(--color-secondary); margin-bottom: 32px; }
.event__list { display: flex; flex-direction: column; gap: 16px; }
.event__row { display: flex; gap: 16px; align-items: flex-start; padding: 8px 0; }
.event__label { flex: 0 0 140px; font-size: 1.6rem; line-height: 1.5; font-weight: 700; }
.event__content { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.event__value { font-size: 1.8rem; line-height: 1.5; font-weight: 700; }
.event__notes { display: flex; flex-direction: column; gap: 8px; font-size: 1.4rem; line-height: 1.5; color: var(--event-muted); }

@media (max-width: 768px) {
  .event { padding: 40px 0; }
  .event__heading { font-size: 2.2rem; margin-bottom: 24px; }
  .event__row { flex-direction: column; gap: 8px; }
  .event__label { flex: 0 0 auto; color: #bfefff; }
  .event__value { font-size: 1.6rem; }
}

/* ============== Block: form ============== */
.form { padding: 80px 0; }
.form__container { max-width: 768px; margin: 0 auto; padding: 0 16px; }

@media (max-width: 768px) {
  .form { padding: 40px 0; }
}

.form__desc { font-size: 1.6rem; line-height: 1.5; color: var(--color-text); margin-bottom: 16px; }
.form__note { font-size: 1.3rem; text-align: right; margin-bottom: 16px; }
.form__body { display: grid; row-gap: 28px; }
.form__group { display: grid; row-gap: 12px; }
.form__label { font-size: 1.6rem; font-weight: 700; }
.form__help { font-size: 1.4rem; line-height: 1.5; color: var(--color-muted); }
.form__field { width: 100%; height: 56px; padding: 0 14px; border: 1px solid transparent; border-radius: 8px; background: #2c284a; color: var(--color-text); font-size: 1.6rem; }
.form__field:focus-visible { outline: none; border-color: var(--color-accent); box-shadow: 0 0 0 3px color-mix(in oklab, var(--color-accent) 30%, transparent); }
textarea.form__field { height: 180px; padding: 12px 14px; }
.form__select { position: relative; height: var(--field-h); }
.form__select select.form__field { appearance: none; -webkit-appearance: none; }
.form__select::before { position: absolute; top: 22px; right: 20px; width: 0; height: 0; content: ""; border-left: 8px solid transparent; border-right: 8px solid transparent; border-top: 12px solid #fff; pointer-events: none; }
.form__other { display: none; margin-top: 8px; }
.form__radios { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.form__radio { display: inline-flex; align-items: center; gap: 8px; font-size: 1.5rem; }
.form__radio input[type="radio"] { width: 16px; height: 16px; accent-color: var(--color-accent); }
.form__choices { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; padding: 4px 0; }
.form__choice { display: inline-flex; align-items: center; gap: 8px; font-size: 1.5rem; line-height: 1.4; }
.form__choice-input { width: 18px; height: 18px; accent-color: var(--color-accent); }
.form__choice-input:focus-visible { outline: none; box-shadow: 0 0 0 3px color-mix(in oklab, var(--color-accent) 30%, transparent); border-radius: 3px; }
.form__choice-label { display: inline-block; }
.form__group--consent { display: flex; justify-content: center; text-align: center; font-size: 1.4rem; background: #1c193a; border-radius: 8px; padding: 14px 12px; }
.form__group--consent .form__choice { justify-content: center; }
.form__consent-link { text-decoration: underline; }
.form__consent-link:hover { text-decoration: none; }
.form__actions { display: flex; justify-content: center; }
.form__button { width: 400px; position: relative; display: inline-block; font-size: 2rem; font-weight: 900; letter-spacing: .5px; color: #fff; background: var(--color-accent); border: 2px solid var(--color-accent); border-radius: 100vh; text-align: center; padding: 24px 0; margin-top: 16px; transition: .3s; }
.form__button::after { content: ""; position: absolute; top: 42%; right: 24px; width: 12px; height: 12px; border-top: 3px solid #fff; border-right: 3px solid #fff; transform: rotate(45deg); transition: .3s; }
.form__button:hover { color: var(--color-bg); border-color: var(--color-bg); background: #fff; }
.form__button:hover::after { right: 20px; border-color: var(--color-bg); }
.form__button:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.form__button:active { transform: translateY(1px); }

@media (max-width: 768px) {
  .form__button { width: 90%; font-size: 1.8rem; }
  .form__button::after { top: 42%; right: 20px; width: 8px; height: 8px; border-top: 2px solid #fff; border-right: 2px solid #fff; }
}

.form__req { color: var(--color-accent); margin-left: 6px; font-weight: 700; }

/* ============== Block: faq ============== */
.faq { padding: 80px 0; background: rgba(0,0,0,.15); }
.faq__subtitle { font-size: 2.4rem; color: var(--color-secondary); margin-bottom: 16px; }
.faq__container { margin-bottom: 80px; }
.faq__item { border-bottom: 1px solid transparent; border-image: var(--color-gradient) 1; overflow: hidden; }
.faq__item + .faq__item { margin-top: 16px; }
.faq__q { position: relative; width: 100%; text-align: left; font-size: 1.8rem; font-weight: 700; line-height: 1.5; background: none; border: 0; cursor: pointer; padding: 16px 40px 24px 0; }
.faq__q::after { content: ""; position: absolute; top: 50%; right: 16px; transform: translateY(-50%); width: 14px; height: 14px; pointer-events: none; background: linear-gradient(currentColor, currentColor) center / 100% 2px no-repeat, linear-gradient(currentColor, currentColor) center / 2px 100% no-repeat; transition: background-size .5s ease; }
.faq__q[aria-expanded="true"]::after { background-size: 100% 2px, 0 0; }
.faq__a { overflow: hidden; height: 0; opacity: 0; transition: height .3s ease, opacity .5s ease; will-change: height, opacity; padding: 0 24px; }
.faq__a-inner { font-size: 1.8rem; line-height: 1.5; padding-bottom: 24px; }

@media (max-width: 768px) {
  .faq { padding: 40px 0; }
  .faq__subtitle { font-size: 2rem; }
  .faq__container { margin-bottom: 60px; }
  .faq__a { padding: 0 8px; }
  .faq__a-inner { font-size: 1.6rem; }
}

/* ============== Block: complete ============== */
.complete { padding: 160px 0; }
.complete__body { text-align: center; }
.complete__text { margin-bottom: 80px; }
@media (max-width: 768px) {
  .complete { padding: 80px 0; }
  .complete__text { margin-bottom: 40px; }
}

/* ============== Footer ============== */
.site-footer { text-align: center; background-color: #10051e; padding-top: 80px; }
.site-footer__title { font-size: 2.6rem; margin-bottom: 60px; }
.site-footer__contact { margin-bottom: 60px; }
.site-footer__contact-btn { display: inline-block; text-align: center; width: 280px; font-size: 1.8rem; font-weight: 700; color: #fff; border: 1px solid; border-image: linear-gradient(to right, #f9bffe, #bfefff) 1; padding: 24px 0; transition: .3s; }
.site-footer__contact-btn:hover { color: #10051e; border-color: #fff; background-color: #fff; }
.site-footer__links { display: flex; justify-content: center; text-align: center; margin-bottom: 60px; }
.site-footer__item { margin: 0 20px; }
.site-footer__link { font-size: 1.6rem; color: #fff; transition: .3s; }
.site-footer__link:hover { opacity: .5; }
.site-footer__copyright { font-size: 1.4rem; color: #fff; opacity: .5; padding-bottom: 40px; }

@media (max-width: 768px) {
  .site-footer { padding-top: 60px; }
  .site-footer__contact-btn { width: 260px; font-size: 1.6rem; }
  .site-footer__link { font-size: 1.5rem; }
}

/* ============== Header ============== */
.site-header { position: fixed; inset: 0 0 auto 0; height: 72px; z-index: 9999; background-color: transparent; transition: background-color .3s ease; display: grid; align-items: center; }
.site-header__inner { width: 100%; padding: 0 16px; display: flex; align-items: center; justify-content: space-between; }
.site-header__logo { flex: 0 0 auto; margin-top: 8px; }
.site-header__logo img { display: block; height: 32px; }
.site-header__actions { display: flex; gap: 16px; }
.site-header__btn { display: inline-flex; align-items: center; justify-content: center; height: 40px; padding: 0 24px; border-radius: 999px; font-size: 1.4rem; font-weight: 700; color: #fff; background: var(--color-accent); filter: brightness(1); border: 0; text-decoration: none; transition: filter .3s ease, background .3s ease; }
.site-header__btn:hover { filter: brightness(1.2); }
.site-header__btn--ghost { background: rgba(255,255,255,.2); }
.site-header__btn--ghost:hover { background: rgba(255,255,255,.25); }
.site-header--solid { background-color: rgba(24,16,44,.88); }

@media (max-width: 768px) {
  .site-header { height: 56px; }
  .site-header__logo { margin-top: 4px; }
  .site-header__logo img { height: 24px; }
  .site-header__actions { gap: 8px; }
  .site-header__btn { height: 32px; padding: 0 12px; font-size: 1.3rem; }
}

@media (prefers-reduced-motion: reduce) {
  .site-header, .site-header__btn { transition: none; }
}

/* ============== Modal ============== */
.modal { position: fixed; inset: 0; z-index: 10000; display: flex; justify-content: center; align-items: center; opacity: 0; visibility: hidden; pointer-events: none; }
.modal__overlay { position: absolute; inset: 0; background: rgba(0,0,0,.5); backdrop-filter: blur(8px) saturate(120%); opacity: 0; transition: opacity .3s ease; }
.modal__dialog { position: relative; max-width: 920px; width: 90%; background: #1c1530; color: #fff; border-radius: 12px; box-shadow: 0 10px 40px rgba(0,0,0,.45); opacity: 0; margin: 0; transform: translateY(-8px); transition: opacity .5s ease, transform .5s ease; }
.modal__grid { display: flex; padding: 30px; }
.modal__media { flex: 0 0 40%; }
.modal__media img { width: 100%; display: block; border-radius: 10px; }
.modal__content { flex: 1; padding-left: 30px; }
.modal__name { font-size: 2rem; font-weight: 700; margin-top: 10px; }
.modal__title { font-size: 1.5rem; line-height: 1.5; margin-top: 10px; }
.modal__lead { font-size: 1.6rem; line-height: 1.6; margin-top: 18px; }
.modal[aria-hidden="false"] { opacity: 1; visibility: visible; pointer-events: auto; }
.modal[aria-hidden="false"] .modal__overlay { opacity: 1; }
.modal[aria-hidden="false"] .modal__dialog { opacity: 1; transform: translateY(0); }
.modal__close { position: absolute; z-index: 11000; top: 24px; right: 24px; width: 56px; height: 56px; padding: 0; border: 1px solid rgba(255,255,255,.35); border-radius: 999px; background: rgba(255,255,255,.08); color: #fff; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; backdrop-filter: blur(6px) saturate(120%); transition: transform .18s ease, background-color .18s ease, border-color .18s ease, opacity .18s ease; }
.modal__close::before, .modal__close::after { content: ""; position: absolute; width: 24px; height: 1.5px; background: currentColor; border-radius: 2px; pointer-events: none; }
.modal__close::before { transform: rotate(45deg); }
.modal__close::after { transform: rotate(-45deg); }
.modal__close:hover { transform: scale(1.06); background-color: rgba(255,255,255,.14); border-color: rgba(255,255,255,.6); }
.modal__close:active { transform: scale(.98); }
.modal__close:focus { outline: none; }
.modal__close:focus:not(:focus-visible) { outline: none; }
.modal.modal-image .modal__dialog { background: transparent; box-shadow: none; padding: 0; width: auto; max-width: none; }
.modal.modal-image .modal__close { color: #fff; text-shadow: 0 2px 12px rgba(0,0,0,.6); }
.modal.modal-image .modal__body { display: flex; justify-content: center; align-items: center; padding: 0 2vw; }
.modal.modal-image .modal__img { display: block; max-width: 90vw; max-height: 90vh; width: auto; height: auto; border-radius: 12px; box-shadow: 0 12px 48px rgba(0,0,0,.5); object-fit: contain; }
.modal.modal-video .modal__dialog { background: #000; padding: 0; width: min(92vw, 1200px); border-radius: 12px; overflow: hidden; }
.modal__video { position: relative; width: 100%; padding-top: 56.25%; background: #000; }
.modal__video iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }

@media (max-width: 900px) {
  .modal__dialog { margin: 6vh 16px; }
  .modal__grid { display: block; padding: 32px; }
  .modal__content { padding-left: 0; }
  .modal__name { margin-top: 24px; }
  .modal__title { margin-top: 8px; }
  .modal__lead { margin-top: 16px; }
  .modal__close { top: 8px; right: 8px; }
}

@media (max-width: 768px) {
  .modal__dialog { margin: 4vh 16px; }
  .modal__grid { padding: 16px; }
  .modal__lead { font-size: 1.5rem; margin-top: 16px; }
}

@media (max-width: 480px) {
  .modal__close { width: 52px; height: 52px; }
  .modal__close::before, .modal__close::after { width: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  .modal__overlay, .modal__dialog { transition: none; }
}

/* ============== Animation ============== */
.reveal--up, .reveal--down, .reveal--fade { opacity: 0 !important; transition-timing-function: cubic-bezier(.2, .6, .2, 1); }
.reveal--up { transform: translate3d(0, 40px, 0); transition: transform 1s, opacity 1s; }
.reveal--down { transform: translate3d(0, -40px, 0); transition: transform 1s, opacity 1s; }
.reveal--fade { transition: opacity 1s; }
.reveal--up.reveal--shown, .reveal--down.reveal--shown { transform: none; opacity: 1 !important; }
.reveal--fade.reveal--shown { opacity: 1 !important; }

@media (prefers-reduced-motion: reduce) {
  .reveal--up, .reveal--down, .reveal--fade { transition: none !important; opacity: 1 !important; transform: none !important; }
}