/* ---- hero ------------------------------------------------------------- */
  .hero {
    min-height: 88vh; padding: 7rem 2rem 5rem;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    text-align: center; position: relative; overflow: hidden;
  }
  .hero-rings { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; pointer-events: none; }
  .hero-ring { position: absolute; border-radius: 50%; border: 1px solid var(--gold); }
  .r1 { width: 118vh; height: 118vh; opacity: .13; }
  .r2 { width: 78vh;  height: 78vh;  opacity: .18; }
  .r3 { width: 38vh;  height: 38vh;  opacity: .28; border-style: dashed; animation: rotate 140s linear infinite; }
  .hero-cross { position: absolute; width: 96vh; height: 96vh; }
  .hero-cross::before, .hero-cross::after { content: ''; position: absolute; background: var(--gold); opacity: .09; }
  .hero-cross::before { top: 50%; left: 0; right: 0; height: 1px; }
  .hero-cross::after  { left: 50%; top: 0; bottom: 0; width: 1px; }
  .hero-inner { position: relative; z-index: 2; max-width: 46rem; animation: materialize 1.6s ease-out; }
  @keyframes materialize {
    from { opacity: 0; transform: translateY(20px); filter: blur(10px); }
    to   { opacity: 1; transform: none; filter: none; }
  }
  .hero-seal { display: inline-flex; flex-direction: column; align-items: center; gap: .6rem; margin-bottom: 2.5rem; position: relative; }
  .hero-seal::before, .hero-seal::after {
    content: ''; position: absolute; top: 60%; width: 56px; height: 1px;
    background: linear-gradient(to right, transparent, var(--gold), transparent);
  }
  .hero-seal::before { right: calc(100% + 1.25rem); }
  .hero-seal::after  { left:  calc(100% + 1.25rem); }
  .hero-title {
    font-family: var(--display); font-size: clamp(2.75rem, 7.5vw, 6rem); font-weight: 400;
    letter-spacing: .07em; color: var(--ivory); line-height: 1.1; margin-bottom: 1.5rem;
    text-shadow: 0 0 60px rgba(201,169,97,.15);
  }
  .hero-title span {
    display: block; color: var(--gold-bright); font-style: italic;
    font-family: var(--serif); font-weight: 300; letter-spacing: .01em;
    text-shadow: 0 0 40px rgba(201,169,97,.4);
  }
  .hero-jp { font-family: var(--jp); font-size: .95rem; letter-spacing: .55em; color: var(--gold); opacity: .8; margin-bottom: 2rem; }
  .hero-sub {
    font-family: var(--serif); font-style: italic; font-size: 1.3rem; color: var(--ivory-ghost);
    max-width: 34rem; margin: 0 auto 3rem; line-height: 1.55; font-weight: 300;
  }
  .hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
  .hero-whisper {
    position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
    font-family: var(--serif); font-style: italic; font-size: .85rem;
    color: var(--ivory-faint); letter-spacing: .1em; animation: breathe 4s ease-in-out infinite;
  }
  @keyframes breathe { 0%,100% { opacity: .3; } 50% { opacity: .7; } }

  /* ---- sections --------------------------------------------------------- */
  section.block { padding: 7rem 0; position: relative; }
  .thesis { text-align: center; padding: 9rem 0; }
  .thesis-quote {
    font-family: var(--serif); font-style: italic; font-size: clamp(1.4rem, 2.8vw, 2.25rem);
    font-weight: 300; color: var(--ivory); max-width: 44rem; margin: 0 auto; line-height: 1.45; position: relative;
  }
  .thesis-quote em { color: var(--gold-bright); font-weight: 400; }
  .thesis-quote::before, .thesis-quote::after {
    content: '"'; font-family: var(--display); font-size: 5rem; color: var(--gold);
    opacity: .4; line-height: 1; position: absolute;
  }
  .thesis-quote::before { top: -2.5rem; left: -.75rem; }
  .thesis-quote::after  { bottom: -4rem; right: -.75rem; }
  .thesis-attr { margin-top: 3.5rem; font-family: var(--display); font-size: .7rem; letter-spacing: .5em; color: var(--gold); }

  .lens-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px;
    margin-top: 3.5rem; background: var(--glass-strong); border: 1px solid var(--glass-strong);
  }
  @media (max-width: 780px) { .lens-grid { grid-template-columns: 1fr; } }
  .lens { background: var(--obsidian); padding: 3rem 2.25rem; position: relative; overflow: hidden; transition: background .5s; }
  .lens::before {
    content: ''; position: absolute; inset: 0; opacity: 0; transition: opacity .5s;
    background: radial-gradient(circle at center, rgba(201,169,97,.08) 0%, transparent 70%);
  }
  .lens:hover::before { opacity: 1; }
  .lens-num { font-family: var(--display); font-size: .625rem; letter-spacing: .45em; color: var(--gold); margin-bottom: 1.75rem; }
  .lens-title { font-family: var(--display); font-size: 1.75rem; letter-spacing: .04em; color: var(--ivory); font-weight: 500; }
  .lens-jp { font-family: var(--jp); font-size: .8125rem; color: var(--gold); letter-spacing: .35em; opacity: .8; display: block; margin: .25rem 0 1.5rem; }
  .lens-body { font-family: var(--serif); font-style: italic; font-size: 1.03rem; color: var(--ivory-ghost); line-height: 1.6; font-weight: 300; }
  .lens-conf {
    margin-top: 1.75rem; padding-top: 1rem; border-top: 1px solid var(--glass-strong);
    font-family: var(--display); font-size: .68rem; letter-spacing: .28em; color: var(--gold-deep);
  }

  .tiers { display: grid; grid-template-columns: 1fr 1.08fr 1fr; margin-top: 3.5rem; }
  @media (max-width: 860px) { .tiers { grid-template-columns: 1fr; gap: 1rem; } }
  .tier {
    padding: 3rem 1.75rem; border: 1px solid var(--glass-strong);
    background: var(--panel); backdrop-filter: blur(10px); position: relative; text-align: center;
  }
  .tier-mid {
    border-color: var(--gold);
    background: linear-gradient(180deg, rgba(15,27,61,.9), rgba(10,12,31,.6));
    box-shadow: 0 0 80px rgba(201,169,97,.14); z-index: 2;
  }
  @media (min-width: 861px) { .tier-mid { transform: scale(1.06); } }
  .tier-orn { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--void); padding: 0 .9rem; color: var(--gold); font-size: 1.15rem; }
  .tier-mid .tier-orn { color: var(--gold-bright); text-shadow: 0 0 20px rgba(201,169,97,.8); }
  .tier-label { font-family: var(--display); font-size: .625rem; letter-spacing: .38em; color: var(--gold); margin: 1.25rem 0; }
  .tier-name { font-family: var(--display); font-size: 1.7rem; letter-spacing: .05em; color: var(--ivory); }
  .tier-tag { font-family: var(--serif); font-style: italic; font-size: .98rem; color: var(--gold-bright); margin-bottom: 1.75rem; font-weight: 300; }
  .tier-price {
    font-family: var(--display); font-size: 2.5rem; color: var(--ivory);
    margin-bottom: 1.75rem; padding-bottom: 1.25rem; border-bottom: 1px solid var(--glass-strong);
  }
  .tier-list { list-style: none; text-align: left; margin-bottom: 0; }
  .tier-list li {
    padding: .55rem 0 .55rem 1.4rem; position: relative; line-height: 1.4; font-weight: 300;
    font-family: var(--serif); font-size: .93rem; color: var(--ivory-ghost);
  }
  .tier-list li::before { content: '✦'; position: absolute; left: 0; top: .8rem; color: var(--gold); font-size: .58rem; }

  .oracle-frame { max-width: 44rem; margin: 0 auto; padding: 3.5rem 2.5rem; text-align: center; }
  .oracle-portrait {
    width: 128px; height: 128px; margin: 0 auto 1.75rem; border-radius: 50%;
    background: linear-gradient(145deg, var(--midnight), var(--obsidian));
    border: 1px solid var(--gold); display: flex; align-items: center; justify-content: center;
    font-family: var(--display); font-size: 2.25rem; color: var(--gold); position: relative;
    box-shadow: 0 0 40px rgba(201,169,97,.2);
  }
  .oracle-portrait::before {
    content: ''; position: absolute; inset: -8px; border-radius: 50%;
    border: 1px dashed var(--gold); opacity: .5; animation: rotate 40s linear infinite;
  }
  .oracle-name { font-family: var(--display); font-size: 1.4rem; letter-spacing: .2em; color: var(--ivory); }
  .oracle-jp { font-family: var(--jp); font-size: .8125rem; letter-spacing: .4em; color: var(--gold); display: block; margin: .25rem 0 2rem; }
  .oracle-body { font-family: var(--serif); font-size: 1.08rem; line-height: 1.75; color: var(--ivory-ghost); font-weight: 300; text-align: left; }
  .oracle-body p { margin-bottom: 1.15rem; }
  .oracle-body em { color: var(--gold-bright); font-style: italic; }
  .oracle-body strong { color: var(--ivory); font-weight: 500; }
  .oracle-meta {
    margin-top: 2.25rem; padding-top: 1.75rem; border-top: 1px solid var(--glass-strong);
    font-family: var(--display); font-size: .65rem; letter-spacing: .3em; color: var(--gold-deep); line-height: 2;
  }

  .cta-band { text-align: center; padding: 6rem 0; }

  /* ---- brand band: the sixteen, as furniture ---------------------------- */
  .brand-band {
    position: relative; width: 100%; overflow: hidden;
    border-top: 1px solid var(--glass-strong); border-bottom: 1px solid var(--glass-strong);
  }
  .brand-band img { width: 100%; height: auto; display: block; }
  /* the artwork's own ground is a shade lighter than the page — fade the seam */
  .brand-band::before, .brand-band::after {
    content: ''; position: absolute; left: 0; right: 0; pointer-events: none;
  }
  .brand-band::before { top: 0; height: 90px; background: linear-gradient(to bottom, var(--void), transparent); }
  /* keep the bottom fade shallow — the artwork's own caption sits down there */
  .brand-band::after { bottom: 0; height: 34px; background: linear-gradient(to top, var(--void), transparent); }
  @media (max-width: 700px) {
    .brand-band::before { height: 40px; }
    .brand-band::after { height: 18px; }
  }

  /* ---- about ------------------------------------------------------------ */
  .about-frame { max-width: 44rem; margin: 0 auto; padding: 3.5rem 2.75rem; text-align: center; }
  .about-mark { font-size: 1.5rem; color: var(--gold); margin-bottom: 1.5rem; }
  .about-title {
    font-family: var(--display); font-size: clamp(1.6rem, 3.4vw, 2.4rem); font-weight: 400;
    letter-spacing: .06em; color: var(--ivory); line-height: 1.35; margin-bottom: 2.25rem;
  }
  .about-title em {
    font-family: var(--serif); font-style: italic; font-weight: 300;
    color: var(--gold-bright); letter-spacing: 0;
  }
  body.lang-ja .about-title { font-family: var(--jp); font-weight: 500; letter-spacing: .08em; }
  body.lang-ja .about-title em { font-family: var(--jp); font-style: normal; }
  .about-body {
    font-family: var(--serif); font-size: 1.08rem; line-height: 1.8;
    color: var(--ivory-ghost); font-weight: 300; text-align: left;
  }
  body.lang-ja .about-body { font-family: var(--jp); font-size: .98rem; line-height: 2.05; }
  .about-body p { margin-bottom: 1.15rem; }
  .about-body p:last-child { margin-bottom: 0; }
  .about-body strong { color: var(--ivory); font-weight: 500; }
  .about-body em { color: var(--gold-bright); font-style: italic; }
  body.lang-ja .about-body em { font-style: normal; }
  .about-meta {
    margin-top: 2.25rem; padding-top: 1.75rem; border-top: 1px solid var(--glass-strong);
    font-family: var(--display); font-size: .65rem; letter-spacing: .3em;
    color: var(--gold-deep); text-transform: uppercase;
  }
  body.lang-ja .about-meta { font-family: var(--jp); letter-spacing: .16em; text-transform: none; font-size: .76rem; }
  .about-meta a { color: var(--gold); border-bottom: 1px solid rgba(201,169,97,.35); }
  .about-meta a:hover { color: var(--gold-bright); }
  @media (max-width: 700px) { .about-frame { padding: 2.5rem 1.5rem; } }

  /* ---- the sixteen: four domains --------------------------------------- */
  .quad-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px;
    margin-top: 3.5rem; background: var(--glass-strong); border: 1px solid var(--glass-strong);
  }
  @media (max-width: 860px) { .quad-grid { grid-template-columns: 1fr; } }

  .quad { background: var(--obsidian); padding: 2.25rem 1.75rem 1.5rem; position: relative; overflow: hidden; }
  .quad::before {
    content: ''; position: absolute; inset: 0; opacity: 0; transition: opacity .6s ease;
    background: radial-gradient(circle at 50% 0%, rgba(201,169,97,.07) 0%, transparent 65%);
  }
  .quad:hover::before { opacity: 1; }

  .quad-head { position: relative; z-index: 2; padding-bottom: 1.25rem; margin-bottom: 1.25rem; border-bottom: 1px solid var(--glass-strong); }
  .quad-name { display: flex; align-items: baseline; gap: .9rem; margin-bottom: .6rem; }
  .quad-kanji {
    font-family: var(--jp); font-size: 1.75rem; font-weight: 500;
    letter-spacing: .28em; color: var(--gold-bright);
  }
  .quad-en {
    font-family: var(--display); font-size: .625rem; letter-spacing: .38em;
    color: var(--gold-deep); text-transform: uppercase;
  }
  .quad-note {
    font-family: var(--serif); font-style: italic; font-size: .95rem;
    color: var(--ivory-ghost); line-height: 1.6; font-weight: 300;
  }
  body.lang-ja .quad-note { font-family: var(--jp); font-style: normal; font-size: .88rem; line-height: 1.85; }

  .quad-types { display: grid; grid-template-columns: repeat(4, 1fr); gap: .5rem; position: relative; z-index: 2; }
  @media (max-width: 520px) { .quad-types { grid-template-columns: repeat(2, 1fr); gap: .75rem; } }

  .tcard {
    display: flex; flex-direction: column; align-items: center; text-align: center;
    padding: .75rem .4rem 1rem; border: 1px solid transparent; border-radius: 2px;
    transition: background .35s ease, border-color .35s ease, transform .35s ease;
  }
  .tcard:hover { background: rgba(15,27,61,.7); border-color: rgba(201,169,97,.35); transform: translateY(-3px); }
  .tcard img {
    height: 104px; width: auto; object-fit: contain; margin-bottom: .6rem;
    filter: drop-shadow(0 4px 18px rgba(0,0,0,.55));
    transition: filter .35s ease;
  }
  .tcard:hover img { filter: drop-shadow(0 0 22px rgba(201,169,97,.35)); }
  .tcode {
    font-family: var(--display); font-size: .78rem; letter-spacing: .16em;
    color: var(--ivory); font-weight: 500;
  }
  .tmon {
    font-family: var(--jp); font-size: .82rem; letter-spacing: .18em;
    color: var(--gold); margin-top: .18rem;
  }
  body.lang-en .tmon { font-family: var(--display); font-size: .6rem; letter-spacing: .2em; text-transform: uppercase; }
  .tline {
    font-family: var(--serif); font-style: italic; font-size: .74rem; line-height: 1.45;
    color: var(--ivory-faint); margin-top: .45rem; max-width: 13em;
  }
  body.lang-ja .tline { font-family: var(--jp); font-style: normal; font-size: .7rem; line-height: 1.65; }
  .tcard:hover .tline { color: var(--ivory-ghost); }