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

    :root {
      --purple-deep:   #0d0015;
      --purple-dark:   #1a002e;
      --purple-mid:    #3a005e;
      --purple-main:   #7b2fff;
      --purple-light:  #b06aff;
      --pink-main:     #ff5ecb;
      --pink-light:    #ffb3e6;
      --gold:          #ffd700;
      --text-main:     #f0e6ff;
      --text-sub:      #c9a8ff;
      --border-glow:   rgba(176, 106, 255, 0.45);
    }

    html { scroll-behavior: smooth; }

    body {
      font-family: 'Noto Sans JP', sans-serif;
      background-color: var(--purple-deep);
      color: var(--text-main);
      min-height: 100vh;
      overflow-x: hidden;
    }

    /* ===== Background particles (CSS only) ===== */
    body::before {
      content: '';
      position: fixed;
      inset: 0;
      background:
        radial-gradient(ellipse 80% 60% at 20% 0%, rgba(123,47,255,.18) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 100%, rgba(255,94,203,.13) 0%, transparent 60%),
        radial-gradient(ellipse 100% 80% at 50% 50%, rgba(26,0,46,.8) 0%, transparent 100%);
      pointer-events: none;
      z-index: 0;
    }

    section, header, footer { position: relative; z-index: 1; }

    /* ===== Utility ===== */
    .container {
      width: min(1100px, 92%);
      margin-inline: auto;
    }

    .text-pink-light {
      color: var(--pink-light);
    }

    .text-sub {
      color: var(--text-sub);
    }

    .text-main {
      color: var(--text-main);
    }

    .text-white {
      color: #fff;
    }

    .text-lg {
      font-size: 1.1em;
    }

    .section-title {
      text-align: center;
      font-size: clamp(1.4rem, 4vw, 2rem);
      font-weight: 900;
      letter-spacing: .12em;
      color: var(--purple-light);
      text-shadow: 0 0 18px var(--purple-main), 0 0 40px rgba(123,47,255,.5);
      margin-bottom: 2.4rem;
    }
    .section-title span {
      display: block;
      font-size: .75em;
      letter-spacing: .3em;
      color: var(--pink-light);
      text-shadow: 0 0 12px var(--pink-main);
      margin-bottom: .4rem;
    }

    /* ===== Divider ===== */
    .divider {
      width: 80%;
      max-width: 500px;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--purple-light), var(--pink-main), var(--purple-light), transparent);
      margin: 0 auto 3.5rem;
      box-shadow: 0 0 8px var(--purple-light);
    }

    /* ===== Header / Hero ===== */
    #hero {
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      position: relative;
      overflow: hidden;
    }

    #hero .hero-bg {
      position: absolute;
      inset: 0;
      background:
        url('images/hero-bg.jpg') center/cover no-repeat,
        linear-gradient(160deg, #0d0015 0%, #1a002e 60%, #0d0015 100%);
      opacity: .35;
      z-index: 0;
    }

    .hero-title {
      position: relative;
      z-index: 1;
      height: min(80vh, 680px);
      width: auto;
      display: block;
      filter: drop-shadow(0 0 24px rgba(176,106,255,.6)) drop-shadow(0 0 60px rgba(255,94,203,.3));
    }

    .hero-scroll {
      position: relative;
      z-index: 1;
      margin-top: 1.8rem;
      font-size: .8rem;
      letter-spacing: .25em;
      color: var(--text-sub);
      animation: blink 2s ease-in-out infinite;
      text-align: center;
    }
    .hero-scroll::after { content: '▼'; display: block; text-align: center; margin-top: .3rem; }

    @keyframes blink { 0%,100%{opacity:1} 50%{opacity:.3} }

    /* ===== Cast hero image (below hero) ===== */
    #cast-hero {
      width: 100%;
      line-height: 0;
      position: relative;
      z-index: 1;
      display: flex;
      justify-content: center;
    }
    #cast-hero img {
      width: min(600px, 100%);
      height: auto;
      display: block;
    }

    /* ===== Responsive: mobile ===== */
    @media (max-width: 768px) {
      nav { display: none; }
      .hero-title { height: auto; width: 92vw; }
    }

    /* ===== About / Event Info ===== */
    #about {
      padding: 5rem 1.5rem;
    }

    .about-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
      gap: 1.5rem;
      margin-top: 0;
    }

    .info-card {
      background: linear-gradient(135deg, rgba(58,0,94,.55), rgba(26,0,46,.8));
      border: 1px solid var(--border-glow);
      border-radius: 16px;
      padding: 2rem 1.6rem;
      backdrop-filter: blur(6px);
      box-shadow: 0 4px 30px rgba(123,47,255,.2), inset 0 1px 0 rgba(255,255,255,.06);
      transition: transform .3s, box-shadow .3s;
    }
    .info-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 8px 40px rgba(123,47,255,.35);
    }

    .info-card .card-icon {
      font-size: 2rem;
      margin-bottom: .8rem;
    }

    .info-card h3 {
      font-size: 1rem;
      letter-spacing: .15em;
      color: var(--pink-light);
      margin-bottom: .6rem;
      text-transform: uppercase;
    }

    .info-card p {
      font-size: .95rem;
      line-height: 1.9;
      color: var(--text-main);
    }

    /* ===== Cast Section ===== */
    #cast {
      padding: 5rem 1.5rem;
      background: linear-gradient(180deg, transparent, rgba(58,0,94,.15), transparent);
    }

    /* Cast grid */
    .cast-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
      gap: 1.6rem;
    }

    .cast-card {
      background: linear-gradient(160deg, rgba(58,0,94,.6), rgba(13,0,21,.8));
      border: 1px solid var(--border-glow);
      border-radius: 18px;
      overflow: hidden;
      transition: transform .35s cubic-bezier(.34,1.56,.64,1), box-shadow .35s;
      cursor: default;
      position: relative;
    }
    .cast-card:hover {
      transform: translateY(-6px) scale(1.02);
      box-shadow: 0 12px 50px rgba(123,47,255,.45), 0 0 0 1px rgba(176,106,255,.4);
    }

    /* Single image per cast (contains both before & after states) */
    .cast-card .cast-image {
      width: 100%;
      overflow: hidden;
      background: var(--purple-dark);
      line-height: 0;
    }
    .cast-card .cast-image img {
      width: 100%;
      height: auto;
      display: block;
    }

    /* Placeholder when no image */
    .cast-image-placeholder {
      width: 100%;
      aspect-ratio: 2/1;
      background: linear-gradient(160deg, rgba(58,0,94,.8), rgba(123,47,255,.2));
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 3rem;
      color: var(--border-glow);
    }

    .cast-info {
      padding: 1rem 1.1rem 1.2rem;
    }
    .cast-info .cast-name {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      letter-spacing: .05em;
    }
    .cast-info .cast-chara {
      font-size: .82rem;
      color: var(--text-sub);
      margin-top: .3rem;
      line-height: 1.6;
    }

    .cast-card { cursor: pointer; }

    .cast-placeholder-label {
      font-size: .75rem;
      color: var(--text-sub);
      text-align: center;
      padding: 2rem 1rem;
      opacity: .6;
    }

    /* ===== Lightbox ===== */
    #lightbox {
      display: none;
      position: fixed;
      inset: 0;
      z-index: 1000;
      background: rgba(0, 0, 0, .88);
      overflow: hidden;
      align-items: center;
      justify-content: center;
      padding: 1rem;
      backdrop-filter: blur(6px);
    }
    #lightbox.open { display: flex; }

    /* Lightbox stage — clips both images during slide */
    #lb-stage {
      position: relative;
      overflow: hidden;
      width: 90vw;
      max-height: 92svh;
      border-radius: 16px;
      box-shadow: 0 0 60px rgba(123,47,255,.5), 0 0 120px rgba(255,94,203,.2);
      line-height: 0;
    }

    /* Current (visible) image — drives stage height */
    #lb-img-cur {
      display: block;
      width: 100%;
      height: auto;
      max-height: 92svh;
      object-fit: contain;
      cursor: pointer;
      position: relative;
      z-index: 1;
    }

    /* Next image — absolutely fills the stage, starts off-screen */
    #lb-img-next {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: contain;
      z-index: 2;
      transform: translateX(100%);
      pointer-events: none;
    }

    /* Close button */
    #lightbox-close {
      position: fixed;
      top: 1.2rem;
      right: 1.4rem;
      background: rgba(58,0,94,.85);
      border: 1px solid var(--border-glow);
      color: var(--text-main);
      font-size: 1.5rem;
      width: 2.6rem;
      height: 2.6rem;
      border-radius: 50%;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      line-height: 1;
      transition: background .2s;
      z-index: 2;
    }
    #lightbox-close:hover { background: var(--purple-mid); }

    /* Prev / Next arrows (PC only) */
    .lb-arrow {
      position: fixed;
      top: 50%;
      transform: translateY(-50%);
      background: rgba(58,0,94,.85);
      border: 1px solid var(--border-glow);
      color: var(--text-main);
      font-size: 2rem;
      width: 3rem;
      height: 3rem;
      border-radius: 50%;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: center;
      transition: background .2s;
      z-index: 2;
    }
    .lb-arrow:hover { background: var(--purple-mid); }
    #lb-prev { left: 1rem; }
    #lb-next { right: 1rem; }

    @media (max-width: 768px) {
      .lb-arrow { display: none; }
      #lb-stage { width: 100vw; max-height: 100svh; border-radius: 0; }
      #lb-img-cur { max-height: 100svh; }
      #lightbox { padding: 0; }
    }

    /* ===== Video Section ===== */
    #video {
      padding: 5rem 1.5rem;
    }
    .video-wrap {
      position: relative;
      width: 100%;
      max-width: 800px;
      margin-inline: auto;
      aspect-ratio: 16/9;
      border-radius: 20px;
      overflow: hidden;
      border: 1px solid var(--border-glow);
      box-shadow: 0 4px 60px rgba(123,47,255,.3);
    }
    .video-wrap iframe {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      border: none;
    }

    /* ===== Campaign Section ===== */
    #campaign {
      padding: 5rem 1.5rem;
    }

    .campaign-inner {
      background: linear-gradient(135deg, rgba(58,0,94,.5), rgba(26,0,46,.85));
      border: 1px solid var(--border-glow);
      border-radius: 24px;
      padding: 3rem 2.5rem;
      box-shadow: 0 4px 60px rgba(123,47,255,.2), inset 0 1px 0 rgba(255,255,255,.05);
      max-width: 800px;
      margin-inline: auto;
    }

    .campaign-title {
      font-size: clamp(1.3rem, 4vw, 1.8rem);
      font-weight: 900;
      text-align: center;
      color: var(--pink-light);
      text-shadow: 0 0 18px var(--pink-main);
      letter-spacing: .12em;
      margin-bottom: 2rem;
    }

    .campaign-cards {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 1.2rem;
      margin-bottom: 2rem;
    }

    .campaign-item {
      background: rgba(13,0,21,.5);
      border: 1px solid rgba(255,94,203,.3);
      border-radius: 14px;
      padding: 1.4rem 1.2rem;
    }
    .campaign-item h4 {
      font-size: .85rem;
      letter-spacing: .1em;
      color: var(--pink-main);
      margin-bottom: .7rem;
      text-shadow: 0 0 10px var(--pink-main);
    }
    .campaign-item p {
      font-size: .9rem;
      line-height: 1.8;
      color: var(--text-main);
    }

    .campaign-note {
      background: rgba(13,0,21,.4);
      border-left: 3px solid var(--purple-light);
      border-radius: 0 10px 10px 0;
      padding: 1.2rem 1.4rem;
      font-size: .88rem;
      line-height: 2;
      color: var(--text-sub);
    }
    .campaign-note strong {
      color: var(--pink-light);
    }

    /* ===== Notice Section ===== */
    #notice {
      padding: 5rem 1.5rem;
      background: linear-gradient(180deg, transparent, rgba(123,47,255,.08), transparent);
    }

    .notice-box {
      background: linear-gradient(135deg, rgba(58,0,94,.45), rgba(26,0,46,.8));
      border: 1px solid var(--border-glow);
      border-radius: 20px;
      padding: 2.5rem 2rem;
      max-width: 780px;
      margin-inline: auto;
      box-shadow: 0 4px 40px rgba(123,47,255,.15);
    }

    .notice-box ul {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: .9rem;
    }

    .notice-box ul li {
      padding-left: 1.4rem;
      position: relative;
      font-size: .93rem;
      line-height: 1.85;
      color: var(--text-main);
    }
    .notice-box ul li::before {
      content: '✦';
      position: absolute;
      left: 0;
      color: var(--purple-light);
      font-size: .7rem;
      top: .35rem;
    }

    .notice-label {
      font-size: .85rem;
      font-weight: 700;
      letter-spacing: .12em;
      color: var(--pink-light);
      margin-bottom: .8rem;
    }

    .notice-list-spaced {
      margin-bottom: 1.6rem;
    }

    .notice-separator {
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(176,106,255,.35), transparent);
      margin-bottom: 1.4rem;
    }

    .notice-footnote {
      margin-top: 1.6rem;
      padding-top: 1.4rem;
      border-top: 1px solid rgba(176,106,255,.2);
      font-size: .88rem;
      line-height: 1.9;
      color: var(--text-sub);
    }

    .notice-box-narrow {
      max-width: 680px;
    }

    .after-copy {
      font-size: .95rem;
      line-height: 2;
      color: var(--text-main);
      margin-bottom: 1.4rem;
    }

    .after-link {
      display: inline-flex;
      align-items: center;
      gap: .5rem;
      background: linear-gradient(135deg, var(--purple-main), var(--pink-main));
      color: #fff;
      font-size: .92rem;
      font-weight: 700;
      letter-spacing: .06em;
      padding: .75rem 1.6rem;
      border-radius: 100px;
      text-decoration: none;
      box-shadow: 0 4px 20px rgba(123,47,255,.4);
    }

    /* ===== Footer ===== */
    footer {
      padding: 3.5rem 1.5rem 2.5rem;
      text-align: center;
      border-top: 1px solid rgba(176,106,255,.2);
    }

    .footer-logo {
      width: min(200px, 55vw);
      margin-bottom: 1.6rem;
      filter: drop-shadow(0 0 12px rgba(176,106,255,.5));
    }

    .twitter-btn {
      display: inline-flex;
      align-items: center;
      gap: .6rem;
      background: linear-gradient(135deg, var(--purple-main), var(--pink-main));
      color: #fff;
      font-size: .95rem;
      font-weight: 700;
      letter-spacing: .08em;
      padding: .85rem 2rem;
      border-radius: 100px;
      text-decoration: none;
      box-shadow: 0 4px 24px rgba(123,47,255,.4);
      transition: transform .2s, box-shadow .2s;
    }
    .twitter-btn:hover {
      transform: translateY(-2px);
      box-shadow: 0 8px 36px rgba(123,47,255,.6);
    }
    .twitter-btn-icon {
      width: 20px;
      height: 20px;
      display: block;
    }

    .footer-copy {
      margin-top: 2rem;
      font-size: .78rem;
      color: rgba(200,180,255,.4);
      letter-spacing: .08em;
    }

    /* ===== Nav (minimal sticky) ===== */
    nav {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 100;
      background: rgba(13,0,21,.75);
      backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(176,106,255,.15);
      padding: .7rem 1.5rem;
    }

    .nav-inner {
      width: min(1100px, 92%);
      margin-inline: auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
    }

    .nav-logo {
      height: 36px;
      filter: drop-shadow(0 0 6px rgba(176,106,255,.6));
    }

    .nav-links {
      display: flex;
      gap: 1.6rem;
      list-style: none;
    }
    .nav-links a {
      color: var(--text-sub);
      text-decoration: none;
      font-size: .82rem;
      letter-spacing: .12em;
      transition: color .2s;
    }
    .nav-links a:hover { color: var(--pink-light); }

    @media (max-width: 500px) {
      .nav-links { gap: 1rem; }
      .nav-links a { font-size: .75rem; }
    }

    /* ===== Scroll animations ===== */
    .reveal {
      opacity: 0;
      transform: translateY(28px);
      transition: opacity .6s ease, transform .6s ease;
    }
    .reveal.visible {
      opacity: 1;
      transform: none;
    }

    /* ===== Stars background ===== */
    .stars {
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: 0;
      overflow: hidden;
    }
    .star {
      position: absolute;
      width: 2px;
      height: 2px;
      border-radius: 50%;
      background: #fff;
      animation: twinkle var(--d, 3s) ease-in-out infinite var(--delay, 0s);
    }
    @keyframes twinkle { 0%,100%{opacity:.2} 50%{opacity:1} }

    /* ===== Attending cast page ===== */
    .subpage-body {
      padding: 3rem 0 5rem;
    }

    .attending-page {
      position: relative;
      z-index: 1;
      min-height: 100vh;
      display: flex;
      align-items: flex-start;
    }

    .attending-page-inner {
      padding-top: 1rem;
    }

    .attending-back-link {
      display: inline-flex;
      align-items: center;
      gap: .4rem;
      color: var(--text-sub);
      text-decoration: none;
      font-size: .9rem;
      letter-spacing: .08em;
      margin-bottom: 1.8rem;
      transition: color .2s ease;
    }

    .attending-back-link:hover {
      color: var(--pink-light);
    }

    .attending-header {
      text-align: center;
      margin-bottom: 3rem;
    }

    .attending-kicker {
      color: var(--pink-light);
      letter-spacing: .3em;
      font-size: .78rem;
      margin-bottom: .9rem;
      text-shadow: 0 0 12px var(--pink-main);
    }

    .attending-title {
      font-size: clamp(2rem, 6vw, 3.2rem);
      line-height: 1.15;
      color: var(--text-main);
      text-shadow: 0 0 28px rgba(176,106,255,.35);
      margin-bottom: 1rem;
    }

    .attending-description {
      max-width: 700px;
      margin: 0 auto;
      color: var(--text-sub);
      line-height: 1.9;
      font-size: .98rem;
    }

    .attending-params {
      margin-top: 1rem;
      color: var(--pink-light);
      font-size: .88rem;
      letter-spacing: .08em;
    }

    .attending-section {
      background: linear-gradient(160deg, rgba(58,0,94,.34), rgba(13,0,21,.64));
      border: 1px solid rgba(176,106,255,.18);
      border-radius: 28px;
      padding: 2.5rem 1.4rem;
      box-shadow: 0 8px 60px rgba(123,47,255,.14);
      backdrop-filter: blur(6px);
    }

    .attending-empty {
      max-width: 640px;
      margin: 0 auto;
      background: linear-gradient(160deg, rgba(58,0,94,.55), rgba(13,0,21,.8));
      border: 1px solid var(--border-glow);
      border-radius: 20px;
      padding: 2rem 1.4rem;
      text-align: center;
      box-shadow: 0 4px 30px rgba(123,47,255,.16);
    }

    .attending-empty-title {
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--pink-light);
      margin-bottom: .8rem;
    }

    .attending-empty-copy {
      color: var(--text-sub);
      line-height: 1.9;
      font-size: .92rem;
    }

    @media (max-width: 768px) {
      .subpage-body {
        padding-top: 2rem;
      }

      .attending-section {
        padding: 2rem 1rem;
        border-radius: 22px;
      }
    }