:root {
      --bg: #05060b;
      --bg2: #0b0d18;
      --card: rgba(255, 255, 255, 0.035);
      --card-hover: rgba(255, 255, 255, 0.06);
      --border: rgba(255, 255, 255, 0.09);
      --border-strong: rgba(255, 255, 255, 0.16);
      --blue: #5b8cff;
      --purple: #a35bff;
      --magenta: #ec4fc0;
      --text: #eef0f7;
      --text2: #9599b3;
      --text3: #565b78;
      --brand-gradient: linear-gradient(90deg, var(--blue), var(--purple) 55%, var(--magenta));
      --mono: 'SF Mono', 'Menlo', 'Consolas', ui-monospace, monospace;
      --sans: 'Inter', 'Noto Sans JP', 'Yu Gothic', 'Meiryo', sans-serif;
    }

    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      overflow-x: hidden;
    }

    body {
      font-family: var(--sans);
      background: var(--bg);
      color: var(--text);
      line-height: 1.75;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
    }

    .container {
      max-width: 1160px;
      margin: 0 auto;
      padding: 0 24px;
    }

    /* ---------- background fx ---------- */
    .bg-fx {
      position: fixed;
      inset: 0;
      z-index: 0;
      pointer-events: none;
      overflow: hidden;
    }

    .bg-fx::before,
    .bg-fx::after {
      content: '';
      position: absolute;
      border-radius: 50%;
      filter: blur(120px);
      opacity: .28;
    }

    .bg-fx::before {
      width: 640px;
      height: 640px;
      top: -220px;
      left: -180px;
      background: var(--blue);
    }

    .bg-fx::after {
      width: 680px;
      height: 680px;
      bottom: -260px;
      right: -200px;
      background: var(--magenta);
    }

    .bg-grid {
      position: fixed;
      inset: 0;
      z-index: 0;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
      background-size: 64px 64px;
      mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 0%, transparent 75%);
    }

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

    /* ---------- header ---------- */
    header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(5, 6, 11, 0.7);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border);
      transition: background .3s ease, border-color .3s ease;
    }

    nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 0;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
    }

    .brand img {
      height: 38px;
      width: auto;
      display: block;
    }

    .brand-text {
      font-weight: 700;
      font-size: 1.05rem;
      letter-spacing: .02em;
    }

    .brand-text .dim {
      color: var(--text2);
      font-weight: 500;
    }

    .nav-links {
      display: flex;
      list-style: none;
      gap: 2.2rem;
      align-items: center;
    }

    .nav-links a {
      text-decoration: none;
      color: var(--text2);
      font-weight: 600;
      font-size: .85rem;
      letter-spacing: .08em;
      font-family: var(--mono);
      text-transform: uppercase;
      transition: color .25s ease;
      position: relative;
      padding: 4px 0;
    }

    .nav-links a::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: -2px;
      width: 0;
      height: 1px;
      background: var(--brand-gradient);
      transition: width .25s ease;
    }

    .nav-links a:hover {
      color: var(--text);
    }

    .nav-links a:hover::after {
      width: 100%;
    }

    .hamburger {
      display: none;
      flex-direction: column;
      gap: 5px;
      cursor: pointer;
      z-index: 102;
    }

    .hamburger span {
      width: 24px;
      height: 2px;
      background: var(--text);
      border-radius: 2px;
      transition: .3s;
    }

    .hamburger.active span:nth-child(1) {
      transform: rotate(-45deg) translate(-5px, 6px);
    }

    .hamburger.active span:nth-child(2) {
      opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
      transform: rotate(45deg) translate(-5px, -6px);
    }

    /* ---------- hero ---------- */
    .hero {
      padding: 6.5rem 0 5.5rem;
      text-align: center;
    }

    .hero-logo {
      width: 118px;
      height: 118px;
      object-fit: contain;
      margin: 0 auto 2rem;
      filter: drop-shadow(0 0 34px rgba(91, 140, 255, .35)) drop-shadow(0 0 60px rgba(236, 79, 192, .18));
      animation: floatY 6s ease-in-out infinite;
    }

    @keyframes floatY {

      0%,
      100% {
        transform: translateY(0);
      }

      50% {
        transform: translateY(-10px);
      }
    }

    .eyebrow {
      font-family: var(--mono);
      font-size: .78rem;
      letter-spacing: .32em;
      color: var(--text3);
      text-transform: uppercase;
      margin-bottom: 1.4rem;
    }

    .hero h1 {
      font-size: clamp(2.6rem, 7vw, 5rem);
      font-weight: 800;
      letter-spacing: -.02em;
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
      line-height: 1.05;
    }

    .hero-sub {
      margin-top: .9rem;
      font-size: 1.05rem;
      color: var(--text2);
      letter-spacing: .02em;
    }

    .hero-tags {
      margin-top: 1.6rem;
      font-size: 1.05rem;
      color: var(--text);
    }

    .hero-tags span {
      color: var(--text3);
      margin: 0 .4em;
    }

    .tagline {
      margin: 2.6rem auto 0;
      max-width: 640px;
      font-family: var(--mono);
      font-weight: 700;
      letter-spacing: .02em;
      font-size: clamp(1.1rem, 2.4vw, 1.55rem);
      line-height: 1.55;
      color: var(--text);
    }

    .tagline .sub {
      display: block;
      margin-top: .7rem;
      font-family: var(--sans);
      font-weight: 400;
      font-size: .95rem;
      color: var(--text2);
      letter-spacing: .04em;
    }

    .hero-tweet {
      display: flex;
      justify-content: center;
      margin-top: 2.6rem;
    }

    .hero-tweet .twitter-tweet {
      margin: 0 !important;
    }

    .hero-social {
      display: flex;
      justify-content: center;
      gap: 1rem;
      margin-top: 2.8rem;
      flex-wrap: wrap;
    }

    .social-pill {
      display: inline-flex;
      align-items: center;
      gap: .5rem;
      padding: .65rem 1.4rem;
      border-radius: 999px;
      border: 1px solid var(--border-strong);
      color: var(--text);
      text-decoration: none;
      font-weight: 600;
      font-size: .92rem;
      background: var(--card);
      transition: all .25s ease;
    }

    .social-pill:hover {
      border-color: transparent;
      background: var(--brand-gradient);
      color: #0a0a0f;
      transform: translateY(-2px);
      box-shadow: 0 10px 30px rgba(163, 91, 255, .3);
    }

    .scroll-cue {
      margin-top: 4rem;
      font-family: var(--mono);
      font-size: .72rem;
      color: var(--text3);
      letter-spacing: .2em;
      text-transform: uppercase;
      animation: bob 2.2s ease-in-out infinite;
    }

    @keyframes bob {

      0%,
      100% {
        opacity: .4;
        transform: translateY(0);
      }

      50% {
        opacity: 1;
        transform: translateY(6px);
      }
    }

    /* ---------- db sections ---------- */
    .db-section {
      padding: 5.5rem 0;
      border-top: 1px solid var(--border);
    }

    .section-label {
      font-family: var(--mono);
      font-size: .78rem;
      letter-spacing: .22em;
      color: var(--text3);
      text-transform: uppercase;
      margin-bottom: 1rem;
    }

    .section-label b {
      color: var(--purple);
      font-weight: 700;
    }

    .section-title {
      font-size: clamp(1.7rem, 3.6vw, 2.5rem);
      font-weight: 800;
      letter-spacing: -.01em;
      margin-bottom: 1rem;
    }

    .section-desc {
      color: var(--text2);
      max-width: 640px;
      margin-bottom: 2.8rem;
    }

    .reveal {
      opacity: 0;
      transform: translateY(24px);
      transition: opacity .7s ease, transform .7s ease;
    }

    .reveal.in {
      opacity: 1;
      transform: translateY(0);
    }

    /* ---------- about ---------- */
    .about-grid {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 3rem;
      align-items: start;
    }

    .about-portrait {
      position: relative;
      max-width: 260px;
      margin-bottom: 1.8rem;
    }

    .about-portrait::before {
      content: '';
      position: absolute;
      z-index: 0;
      width: 85%;
      aspect-ratio: 1/1;
      top: 0;
      left: 50%;
      transform: translateX(-50%);
      border-radius: 50%;
      filter: blur(50px);
      background: radial-gradient(circle, rgba(91, 140, 255, .35), rgba(163, 91, 255, .22) 45%, transparent 72%);
    }

    .about-portrait img {
      position: relative;
      z-index: 1;
      width: 100%;
      height: auto;
      display: block;
      border-radius: 18px;
      filter: drop-shadow(0 0 26px rgba(91, 140, 255, .22)) drop-shadow(0 16px 40px rgba(0, 0, 0, .5));
    }

    .about-copy p {
      color: var(--text2);
      margin-bottom: 1.2rem;
      font-size: 1.02rem;
    }

    .about-copy strong {
      color: var(--text);
    }

    .about-copy .caution {
      font-family: var(--mono);
      font-size: .82rem;
      color: var(--text3);
      border-left: 2px solid var(--border-strong);
      padding-left: .9rem;
      margin-top: 1.6rem;
    }

    .fact-list {
      display: flex;
      flex-direction: column;
      gap: .9rem;
    }

    .fact {
      border: 1px solid var(--border);
      background: var(--card);
      border-radius: 12px;
      padding: 1.1rem 1.3rem;
      transition: border-color .25s ease, background .25s ease;
    }

    .fact:hover {
      border-color: var(--border-strong);
      background: var(--card-hover);
    }

    .fact-key {
      font-family: var(--mono);
      font-size: .7rem;
      letter-spacing: .16em;
      color: var(--text3);
      text-transform: uppercase;
      margin-bottom: .4rem;
    }

    .fact-val {
      font-size: .98rem;
      color: var(--text);
      font-weight: 500;
    }

    .fact-val b {
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
      font-weight: 800;
    }

    /* ---------- contents ---------- */
    .contents-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.4rem;
      margin-bottom: 2.6rem;
    }

    .content-card {
      border: 1px solid var(--border);
      background: var(--card);
      border-radius: 16px;
      padding: 1.8rem 1.5rem;
      transition: all .3s ease;
      position: relative;
      overflow: hidden;
    }

    .content-card:hover {
      transform: translateY(-6px);
      border-color: var(--border-strong);
      box-shadow: 0 16px 40px rgba(0, 0, 0, .4);
    }

    .content-card.featured {
      border-color: rgba(163, 91, 255, .4);
      background: linear-gradient(160deg, rgba(91, 140, 255, .08), rgba(236, 79, 192, .05));
    }

    .content-card .num {
      font-family: var(--mono);
      font-size: .72rem;
      color: var(--text3);
      margin-bottom: 1rem;
    }

    .content-card .icon {
      font-size: 1.8rem;
      display: block;
      margin-bottom: .9rem;
    }

    .content-card h3 {
      font-family: var(--mono);
      font-size: 1rem;
      letter-spacing: .06em;
      margin-bottom: .6rem;
    }

    .content-card .jp {
      font-size: .94rem;
      color: var(--text);
      font-weight: 600;
      margin-bottom: .5rem;
    }

    .content-card p {
      font-size: .86rem;
      color: var(--text2);
    }

    .brand-quote {
      text-align: center;
      padding: 2.8rem 1.5rem;
      border-radius: 18px;
      border: 1px solid var(--border-strong);
      background: linear-gradient(135deg, rgba(91, 140, 255, .08), rgba(163, 91, 255, .08), rgba(236, 79, 192, .08));
    }

    .brand-quote .en {
      font-family: var(--mono);
      font-weight: 700;
      letter-spacing: .02em;
      font-size: clamp(1.05rem, 2.6vw, 1.5rem);
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
      display: block;
      margin-bottom: .7rem;
    }

    .brand-quote .jp {
      color: var(--text2);
      font-size: .95rem;
      letter-spacing: .04em;
    }

    /* ---------- comics ---------- */
    .comics-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.4rem;
      margin-bottom: 2rem;
    }

    .comic-card {
      aspect-ratio: 3/4;
      border-radius: 16px;
      border: 1px dashed var(--border-strong);
      background: var(--card);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: .6rem;
      text-align: center;
      padding: 1.5rem;
      transition: all .3s ease;
    }

    .comic-card:hover {
      border-color: var(--purple);
      background: var(--card-hover);
      transform: translateY(-4px);
    }

    .comic-card .glyph {
      font-size: 2.2rem;
      opacity: .7;
    }

    .comic-card .tag {
      font-family: var(--mono);
      font-size: .7rem;
      color: var(--text3);
      letter-spacing: .12em;
    }

    .comic-card .soon {
      font-size: .82rem;
      color: var(--text2);
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: .4rem;
      text-decoration: none;
      font-family: var(--mono);
      font-size: .85rem;
      letter-spacing: .06em;
      color: var(--text2);
      border-bottom: 1px solid var(--border-strong);
      padding-bottom: 2px;
      transition: color .25s ease, border-color .25s ease;
    }

    .text-link:hover {
      color: var(--purple);
      border-color: var(--purple);
    }

    /* ---------- game ---------- */
    .game-section {
      border-top: 1px solid var(--border);
    }

    .game-banner {
      position: relative;
      border-radius: 24px;
      padding: 3.6rem 2.5rem;
      text-align: center;
      background: linear-gradient(160deg, #0d1024, #140a22 60%, #1a0a1c);
      border: 1px solid rgba(163, 91, 255, .35);
      overflow: hidden;
    }

    .game-banner::before {
      content: '';
      position: absolute;
      inset: -2px;
      z-index: 0;
      border-radius: 24px;
      padding: 2px;
      background: conic-gradient(from 0deg, var(--blue), var(--purple), var(--magenta), var(--blue));
      -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
      mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
      -webkit-mask-composite: xor;
      mask-composite: exclude;
      opacity: .55;
      animation: spin 8s linear infinite;
    }

    @keyframes spin {
      to {
        transform: rotate(360deg);
      }
    }

    .game-banner>* {
      position: relative;
      z-index: 1;
    }

    .game-banner .num {
      font-family: var(--mono);
      font-size: .78rem;
      letter-spacing: .22em;
      color: var(--text3);
      text-transform: uppercase;
      margin-bottom: 1.2rem;
    }

    .game-banner h2 {
      font-size: clamp(2rem, 5vw, 3rem);
      font-weight: 800;
      margin-bottom: 1rem;
      background: var(--brand-gradient);
      -webkit-background-clip: text;
      background-clip: text;
      -webkit-text-fill-color: transparent;
    }

    .game-banner p {
      color: var(--text2);
      font-size: 1.05rem;
      margin-bottom: .4rem;
    }

    .game-banner p.lead {
      color: var(--text);
      font-weight: 600;
    }

    .play-btn {
      display: inline-flex;
      align-items: center;
      gap: .6rem;
      margin-top: 2.2rem;
      padding: 1rem 2.6rem;
      border-radius: 999px;
      text-decoration: none;
      background: var(--brand-gradient);
      color: #0a0a0f;
      font-weight: 800;
      font-size: 1.05rem;
      box-shadow: 0 14px 40px rgba(163, 91, 255, .35);
      transition: transform .25s ease, box-shadow .25s ease;
    }

    .play-btn:hover {
      transform: translateY(-3px) scale(1.02);
      box-shadow: 0 18px 50px rgba(163, 91, 255, .5);
    }

    /* ---------- note ---------- */
    .note-card {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 2rem;
      border: 1px solid var(--border);
      background: var(--card);
      border-radius: 18px;
      padding: 2.4rem;
      transition: all .3s ease;
      text-decoration: none;
    }

    .note-card:hover {
      border-color: var(--border-strong);
      background: var(--card-hover);
    }

    .note-card h3 {
      font-size: 1.4rem;
      margin-bottom: .6rem;
    }

    .note-card p {
      color: var(--text2);
      font-size: .94rem;
      max-width: 480px;
    }

    .note-card .arrow {
      font-family: var(--mono);
      font-size: 1.6rem;
      color: var(--purple);
      flex-shrink: 0;
      transition: transform .25s ease;
    }

    .note-card:hover .arrow {
      transform: translateX(6px);
    }

    /* ---------- connect ---------- */
    .connect-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 1.4rem;
    }

    .connect-card {
      display: block;
      text-decoration: none;
      border: 1px solid var(--border);
      background: var(--card);
      border-radius: 18px;
      padding: 2rem 1.6rem;
      transition: all .3s ease;
    }

    .connect-card:hover {
      transform: translateY(-6px);
      border-color: var(--border-strong);
      box-shadow: 0 16px 40px rgba(0, 0, 0, .4);
    }

    .connect-card .glyph {
      font-size: 1.8rem;
      margin-bottom: 1rem;
      display: block;
    }

    .connect-card h3 {
      font-size: 1.15rem;
      margin-bottom: .4rem;
    }

    .connect-card .handle {
      font-family: var(--mono);
      font-size: .82rem;
      color: var(--purple);
      margin-bottom: .7rem;
      display: block;
    }

    .connect-card p {
      font-size: .86rem;
      color: var(--text2);
    }

    /* ---------- footer ---------- */
    footer {
      border-top: 1px solid var(--border);
      padding: 3rem 0;
    }

    .footer-inner {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 1rem;
      text-align: center;
    }

    .footer-inner img {
      height: 30px;
      opacity: .8;
    }

    footer p {
      font-size: .82rem;
      color: var(--text3);
      font-family: var(--mono);
    }

    /* ---------- responsive ---------- */
    @media (max-width:900px) {
      .about-grid {
        grid-template-columns: 1fr;
      }

      .about-portrait {
        max-width: 260px;
        margin: 0 auto 1rem;
      }

      .contents-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .comics-grid {
        grid-template-columns: repeat(3, 1fr);
      }

      .connect-grid {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width:768px) {
      .hamburger {
        display: flex;
      }

      .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: 72%;
        max-width: 300px;
        background: rgba(8, 9, 16, 0.97);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        gap: 2rem;
        padding-left: 2.4rem;
        transition: right .3s ease;
        border-left: 1px solid var(--border);
        z-index: 101;
      }

      .nav-links.active {
        right: 0;
      }

      .brand-text {
        font-size: .92rem;
      }

      .brand img {
        height: 32px;
      }

      .db-section {
        padding: 4rem 0;
      }

      .contents-grid {
        grid-template-columns: 1fr;
      }

      .comics-grid {
        grid-template-columns: 1fr 1fr;
      }

      .note-card {
        flex-direction: column;
        align-items: flex-start;
      }

      .game-banner {
        padding: 2.6rem 1.6rem;
      }
    }

    @media (max-width:420px) {
      .comics-grid {
        grid-template-columns: 1fr;
      }
    }