:root{
  --gold:#c79a51;
  --gold-light:#f3d59d;
  --gold-soft:#fff4dc;
  --gold-dark:#9b6b2f;

  --purple:#68106f;
  --purple-dark:#2a062f;
  --purple-soft:#f6e8ff;

  --red:#8b0000;
  --paper:#fffaf3;
  --ink:#1d1a17;
  --muted:#706862;

  --epk1-bg:#f7f1ee;
  --epk1-pink:#e8d7db;
  --epk1-rose:#cfa8b2;
  --epk1-deep:#8f5f6d;

  --epk2-navy:#071936;
  --epk2-blue:#102f63;
  --epk2-silver:#c8d5e8;
  --epk2-cream:#e8ddc8;

  --zenith-dark:#13051f;
  --zenith-purple:#37105f;
  --zenith-violet:#8b55ff;
  --zenith-cyan:#a4e6ff;
}

*{
  box-sizing:border-box;
}

html{
  scroll-behavior:smooth;
}

body{
  margin:0;
  font-family:"IBM Plex Sans Thai", system-ui, sans-serif;
  background:var(--paper);
  color:var(--ink);
  overflow-x:hidden;
}

a{
  color:inherit;
  text-decoration:none;
}

.nav{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:100;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:16px clamp(18px,5vw,72px);
  background:rgba(255,250,243,.82);
  backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(199,154,81,.22);
}

.brand{
  font-weight:800;
  letter-spacing:.04em;
  white-space:nowrap;
  color:var(--gold);
  text-shadow:0 1px 0 rgba(255,255,255,.7);
}

.nav-links{
  display:flex;
  gap:22px;
  font-size:.95rem;
  color:#4f404f;
}

.nav-links a{
  transition:.2s ease;
}

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

.menu-btn{
  display:none;
  border:1px solid rgba(199,154,81,.35);
  background:rgba(255,255,255,.68);
  color:var(--purple);
  border-radius:12px;
  padding:8px 11px;
  font-size:1.2rem;
}

.hero{
  min-height:100vh;
  display:grid;
  place-items:center;
  position:relative;
  padding:130px clamp(18px,5vw,72px) 70px;
  overflow:hidden;
  background:
    radial-gradient(circle at 18% 20%, rgba(199,154,81,.34), transparent 30%),
    radial-gradient(circle at 82% 32%, rgba(104,16,111,.18), transparent 28%),
    linear-gradient(135deg,#fffaf1 0%,#f7edff 100%);
}

.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(199,154,81,.075) 1px, transparent 1px),
    linear-gradient(90deg, rgba(199,154,81,.075) 1px, transparent 1px);
  background-size:46px 46px;
  mask-image:radial-gradient(circle at center, black, transparent 75%);
  pointer-events:none;
}

.hero::after{
  /*content:"GM24";*/
  position:absolute;
  right:-3vw;
  bottom:-6vw;
  font-family:"Space Grotesk", sans-serif;
  font-size:clamp(7rem,18vw,18rem);
  font-weight:800;
  letter-spacing:-.08em;
  color:rgba(104,16,111,.055);
  pointer-events:none;
}

.hero-inner{
  position:relative;
  z-index:2;
  max-width:1050px;
  text-align:center;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:8px 15px;
  border:1px solid rgba(199,154,81,.36);
  border-radius:999px;
  color:var(--purple);
  background:rgba(255,255,255,.58);
  font-weight:700;
  font-size:.92rem;
  margin-bottom:24px;
  box-shadow:0 10px 32px rgba(104,16,111,.06);
}

h1{
  margin:0;
  font-size:clamp(3rem,9vw,7.8rem);
  line-height:.96;
  letter-spacing:-.08em;
  color:var(--gold);
}

h1 span{
  color:var(--purple);
  font-family: "Times New Roman";
}

.hero-subtitle{
  max-width:760px;
  margin:26px auto 0;
  color:#5f554e;
  font-size:clamp(1.05rem,2.2vw,1.35rem);
  line-height:1.8;
}

.hero-actions,
.order-actions{
  margin-top:36px;
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:14px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:12px 22px;
  border-radius:999px;
  border:1px solid transparent;
  font-weight:800;
  transition:.2s ease;
  cursor:pointer;
}

.btn-primary{
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  color:var(--purple-dark);
  box-shadow:0 14px 36px rgba(199,154,81,.28);
}

.btn-primary:hover,
.btn-ghost:hover{
  transform:translateY(-2px);
}

.btn-primary:hover{
  box-shadow:0 18px 42px rgba(199,154,81,.36);
}

.btn-ghost{
  border-color:rgba(199,154,81,.55);
  color:var(--purple);
  background:rgba(255,255,255,.62);
}

.btn-ghost:hover{
  background:white;
  border-color:rgba(199,154,81,.8);
}

.section{
  padding:90px clamp(18px,5vw,72px);
}

.section-head{
  max-width:850px;
  margin:0 auto 42px;
  text-align:center;
}

.section-kicker{
  color:var(--gold-dark);
  font-weight:800;
  letter-spacing:.08em;
  text-transform:uppercase;
  margin:0 0 8px;
}

.section-head h2,
.order-card h2,
.social-inner h2{
  margin:0;
  font-size:clamp(2rem,5vw,4.2rem);
  line-height:1.13;
  letter-spacing:-.04em;
  color:var(--purple-dark);
}

.section-head p,
.order-card p,
.social-inner p{
  margin:18px auto 0;
  max-width:720px;
  color:var(--muted);
  font-size:1.06rem;
  line-height:1.8;
}

.book-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:22px;
  max-width:1180px;
  margin:0 auto;
}

.book-card{
  position:relative;
  min-height:520px;
  overflow:hidden;
  border-radius:32px;
  padding:28px;
  border:1px solid rgba(0,0,0,.08);
  box-shadow:0 22px 70px rgba(30,20,10,.10);
  transition:.25s ease;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}

.book-card:hover{
  transform:translateY(-7px);
  box-shadow:0 28px 90px rgba(30,20,10,.16);
}

.book-card::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:0;
  opacity:.96;
}

.book-card > *{
  position:relative;
  z-index:1;
}

.portal-epk1{
  background:#f7f1ee;
  color:#2a2020;
}

.portal-epk1::before{
  background:
    radial-gradient(circle at 20% 18%, rgba(255,255,255,.95), transparent 23%),
    radial-gradient(circle at 80% 12%, rgba(232,215,219,.9), transparent 30%),
    linear-gradient(135deg,#fffaf5,#e8d7db);
}

.portal-epk1::after{
  position:absolute;
  right:24px;
  bottom:10px;
  font-family:"Noto Sans Symbols 2", sans-serif;
  font-size:6rem;
  color:rgba(143,95,109,.18);
}

.portal-epk2{
  background:var(--epk2-navy);
  color:white;
}

.portal-epk2::before{
  background:
    radial-gradient(circle at 20% 18%, rgba(200,213,232,.25), transparent 28%),
    linear-gradient(135deg,#071936,#102f63);
}

.portal-epk2::after{
  position:absolute;
  right:18px;
  bottom:16px;
  font-family:"Noto Sans Symbols 2", sans-serif;
  font-size:4.6rem;
  color:rgba(200,213,232,.16);
}

.portal-zenith{
  background:var(--zenith-dark);
  color:var(--gold-light);
}

.portal-zenith::before{
  background:
    radial-gradient(circle at 22% 18%, rgba(164,230,255,.25), transparent 22%),
    radial-gradient(circle at 78% 18%, rgba(139,85,255,.34), transparent 27%),
    linear-gradient(135deg,#13051f,#37105f 60%,#1b0730);
}

.portal-zenith::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(circle, rgba(255,255,255,.85) 1px, transparent 1px);
  background-size:26px 26px;
  opacity:.18;
}

.book-label{
  display:inline-flex;
  width:max-content;
  max-width:100%;
  padding:7px 12px;
  border-radius:999px;
  font-size:.82rem;
  font-weight:800;
  background:rgba(255,255,255,.34);
  border:1px solid rgba(255,255,255,.28);
}

.portal-epk1 .book-label{
  background:rgba(255,255,255,.62);
  color:var(--epk1-deep);
  border-color:rgba(143,95,109,.20);
}

.book-card h3{
  margin:24px 0 0;
  font-size:clamp(1.65rem,3vw,2.25rem);
  line-height:1.35;
  letter-spacing:-.025em;
  font-weight: normal;
}

.book-card p{
  margin-top:20px;
  line-height:1.75;
  opacity:.86;
}

.enter{
  margin-top:28px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:900;
}

.enter span{
  transition:.18s ease;
}

.book-card:hover .enter span{
  transform:translateX(4px);
}

.book-world{
  position:relative;
  min-height:100vh;
  padding:110px clamp(18px,5vw,72px);
  overflow:hidden;
}

.world-inner{
  position:relative;
  z-index:2;
  max-width:1180px;
  margin:0 auto;
  display:grid;
  grid-template-columns:.92fr 1.08fr;
  gap:56px;
  align-items:center;
}

.world-inner.reverse{
  grid-template-columns:1.08fr .92fr;
}

.mock-cover{
  min-height:560px;
  border-radius:34px;
  display:grid;
  place-items:center;
  text-align:center;
  padding:32px;
  box-shadow:0 30px 90px rgba(0,0,0,.22);
  position:relative;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.22);
}

.cover-symbol{
  font-family:"Noto Sans Symbols", sans-serif;
  font-size:7rem;
  line-height:1;
  opacity:.35;
}

.mock-cover h3{
  margin:0;
  font-size:clamp(2rem,4vw,3.3rem);
  line-height:1.32;
  letter-spacing:-.04em;
}

.mock-cover p{
  margin:20px auto 0;
  max-width:370px;
  line-height:1.8;
  opacity:.78;
}

.world-content h2{
  margin:0;
  font-size:clamp(2.25rem,5vw,5.1rem);
  line-height:1.16;
  letter-spacing:-.055em;
}

.tag{
  display:inline-flex;
  padding:8px 14px;
  border-radius:999px;
  font-weight:900;
  margin-bottom:20px;
}

.world-content p{
  font-size:1.08rem;
  line-height:1.9;
  margin:20px 0 0;
}

.epk1-world{
  background:
    radial-gradient(circle at 12% 20%, rgba(255,255,255,.9), transparent 24%),
    radial-gradient(circle at 80% 18%, rgba(232,215,219,.8), transparent 26%),
    linear-gradient(135deg,#fffaf7 0%,#f7f1ee 42%,#e8d7db 100%);
  color:#2b2020;
}

.epk1-world::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(115deg, transparent 0 18%, rgba(143,95,109,.10) 18% 19%, transparent 19% 44%, rgba(255,255,255,.42) 44% 45%, transparent 45% 100%),
    radial-gradient(circle at 20% 80%, rgba(207,168,178,.24), transparent 32%);
}

.epk1-cover{
  background:
    radial-gradient(circle at 25% 20%, rgba(255,255,255,.86), transparent 25%),
    linear-gradient(135deg,#fff8f3,#e8d7db);
  color:#7c5260;
}

.epk1-tag{
  background:rgba(143,95,109,.13);
  color:var(--epk1-deep);
  border:1px solid rgba(143,95,109,.18);
}

.epk2-world{
  background:
    radial-gradient(circle at 20% 20%, rgba(200,213,232,.16), transparent 28%),
    radial-gradient(circle at 85% 70%, rgba(232,221,200,.10), transparent 24%),
    linear-gradient(135deg,#051125 0%,#071936 45%,#102f63 100%);
  color:white;
}

.epk2-world::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(200,213,232,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(200,213,232,.06) 1px, transparent 1px);
  background-size:54px 54px;
  opacity:.55;
}

.epk2-cover{
  background:
    radial-gradient(circle at 22% 20%, rgba(200,213,232,.2), transparent 28%),
    linear-gradient(135deg,#06152f,#0f2f66);
  color:#eaf1ff;
}

.epk2-tag{
  background:rgba(200,213,232,.14);
  color:#eaf1ff;
  border:1px solid rgba(200,213,232,.24);
}

.zenith-world{
  background:
    radial-gradient(circle at 20% 15%, rgba(164,230,255,.16), transparent 23%),
    radial-gradient(circle at 75% 25%, rgba(139,85,255,.28), transparent 27%),
    radial-gradient(circle at 50% 88%, rgba(127,60,255,.20), transparent 30%),
    linear-gradient(135deg,#10031c 0%,#2a0b4d 55%,#13051f 100%);
  color:var(--gold-light);
}

.zenith-world::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(circle, rgba(255,255,255,.86) 1px, transparent 1px);
  background-size:30px 30px;
  opacity:.16;
}

.zenith-world::after{
  content:"";
  position:absolute;
  width:620px;
  height:620px;
  border:1px solid rgba(164,230,255,.16);
  border-radius:50%;
  top:14%;
  right:-230px;
  box-shadow:
    0 0 0 80px rgba(139,85,255,.035),
    0 0 0 160px rgba(164,230,255,.025);
}

.zenith-cover{
  background:
    radial-gradient(circle at 28% 18%, rgba(164,230,255,.25), transparent 25%),
    radial-gradient(circle at 70% 65%, rgba(139,85,255,.28), transparent 25%),
    linear-gradient(135deg,#170529,#37105f);
  color:var(--gold-light);
}

.zenith-tag{
  background:rgba(139,85,255,.22);
  color:#f3edff;
  border:1px solid rgba(164,230,255,.22);
}

.order-section{
  padding:100px clamp(18px,5vw,72px);
  background:
    radial-gradient(circle at 15% 20%, rgba(199,154,81,.28), transparent 28%),
    radial-gradient(circle at 85% 30%, rgba(104,16,111,.12), transparent 26%),
    linear-gradient(135deg,#fffaf1,#f6e8ff);
}

.order-card{
  max-width:900px;
  margin:0 auto;
  text-align:center;
  padding:56px clamp(24px,5vw,70px);
  border-radius:36px;
  background:rgba(255,255,255,.66);
  border:1px solid rgba(199,154,81,.24);
  box-shadow:0 22px 80px rgba(104,16,111,.11);
}

.social-section{
  padding:90px clamp(18px,5vw,72px);
  background:
    radial-gradient(circle at 15% 20%, rgba(199,154,81,.22), transparent 26%),
    radial-gradient(circle at 90% 10%, rgba(243,213,157,.12), transparent 30%),
    linear-gradient(135deg,var(--purple-dark),var(--purple));
  color:white;
}

.social-inner{
  max-width:1120px;
  margin:0 auto;
  text-align:center;
}

.social-inner .section-kicker{
  color:var(--gold-light);
}

.social-inner h2{
  color:white;
}

.social-inner p{
  color:rgba(255,255,255,.72);
}

.social-grid{
  display:grid;
  grid-template-columns:1fr 1fr 1fr;
  gap:16px;
  margin-top:34px;
}

.social-card{
  display:flex;
  flex-direction:column;
  border-radius:28px;
  text-align:left;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(243,213,157,.16);
  transition:.22s ease;
}

.social-card:hover{
  transform:translateY(-5px);
  background:rgba(255,255,255,.13);
  border-color:rgba(243,213,157,.55);
}

.social-card span{
  width:max-content;
  max-width:100%;
  padding:5px 11px;
  border-radius:999px;
  background:rgba(243,213,157,.16);
  color:var(--gold-light);
  font-weight:900;
  font-size:.9rem;
}

.social-card strong{
  font-size:1.12rem;
  line-height:1.55;
}

.copy-site-link{
  margin-top:26px;
  font:inherit;
  font-weight:900;
  cursor:pointer;
  color:var(--purple-dark);
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  border:none;
  border-radius:999px;
  padding:12px 20px;
  transition:.2s ease;
}

.copy-site-link:hover{
  transform:translateY(-2px);
  box-shadow:0 16px 38px rgba(243,213,157,.16);
}

footer{
  padding:28px clamp(18px,5vw,72px);
  padding-left: 12px;
  background:var(--purple-dark);
  color:rgba(255,255,255,.72);
}

.reveal{
  opacity:0;
  transform:translateY(22px);
  transition:opacity .7s ease, transform .7s ease;
}

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

@media (max-width:1000px){
  .social-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}

@media (max-width:900px){
  .menu-btn{
    display:block;
  }

  .nav-links{
    position:absolute;
    top:100%;
    left:16px;
    right:16px;
    display:none;
    flex-direction:column;
    gap:0;
    padding:10px;
    border-radius:20px;
    background:rgba(255,250,243,.96);
    border:1px solid rgba(199,154,81,.22);
    box-shadow:0 18px 60px rgba(0,0,0,.12);
  }

  .nav-links.open{
    display:flex;
  }

  .nav-links a{
    padding:13px 14px;
    border-radius:14px;
  }

  .nav-links a:hover{
    background:rgba(199,154,81,.10);
  }

  .book-grid,
  .world-inner,
  .world-inner.reverse{
    grid-template-columns:1fr;
  }

  .mock-cover{
    min-height:420px;
  }
}

@media (max-width:620px){
  .social-grid{
    grid-template-columns:1fr;
  }
}

@media (max-width:520px){
  .section,
  .book-world,
  .order-section,
  .social-section{
    padding-left:16px;
    padding-right:16px;
  }

  .book-card{
    min-height:430px;
    border-radius:26px;
  }

  .hero-actions,
  .order-actions{
    align-items:stretch;
    flex-direction:column;
  }

  .btn{
    width:100%;
  }

  footer{
    flex-direction:column;
  }
}


.about-books-section{
  padding:100px clamp(18px,5vw,72px);
  background:
    radial-gradient(circle at 16% 20%, rgba(199,154,81,.18), transparent 28%),
    radial-gradient(circle at 90% 35%, rgba(104,16,111,.10), transparent 30%),
    linear-gradient(135deg,#fffaf3 0%,#f8f0ff 100%);
}

.about-books-inner{
  max-width:1180px;
  margin:0 auto;
  display:grid;
  grid-template-columns:.95fr 1.05fr;
  gap:42px;
  align-items:center;
}

.about-books-text h2{
  margin:0;
  font-size:clamp(2rem,5vw,4.2rem);
  line-height:1.13;
  letter-spacing:-.04em;
  color:var(--brand-purple-dark);
}

.about-books-text p{
  margin:18px 0 0;
  color:var(--muted);
  font-size:1.06rem;
  line-height:1.85;
}

.about-books-card{
  display:grid;
  gap:14px;
  padding:18px;
  border-radius:34px;
  background:rgba(255,255,255,.58);
  border:1px solid rgba(199,154,81,.22);
  box-shadow:0 24px 80px rgba(104,16,111,.10);
  backdrop-filter:blur(14px);
}

.about-mini-item{
  position:relative;
  overflow:hidden;
  padding:26px 24px;
  border-radius:24px;
  background:rgba(255,255,255,.72);
  border:1px solid rgba(199,154,81,.18);
}

.about-mini-item span{
  position:absolute;
  right:18px;
  top:-10px;
  z-index:0;

  margin:0;
  padding:0;
  border-radius:0;
  background:none;

  color:rgba(199,154,81,.16);
  font-family:"Space Grotesk", sans-serif;
  font-size:5.4rem;
  line-height:1;
  font-weight:800;
  letter-spacing:-.08em;
}

.about-mini-item strong,
.about-mini-item p{
  position:relative;
  z-index:1;
}

.about-mini-item strong{
  display:block;
  color:var(--brand-purple-dark);
  line-height:1.55;
  font-size: 1.2rem;
}

.about-mini-item p{
  margin:8px 0 0;
  color:var(--muted);
  line-height:1.7;
}

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

@media (max-width:520px){
  .about-books-section{
    padding-left:16px;
    padding-right:16px;
  }
}

.clean-social-card{
  min-height:0px;
  padding:12px 18px;
  align-items:center;
  justify-content:center;
  text-align:center;
  background:rgba(243,213,157,.16);
  color:var(--gold-light);
  font-weight:700;
  font-size: 1.25rem;
}

.clean-social-card span{
  margin:0;
  font-size:1.05rem;
}

.footer-inline-info{
  display:inline-flex;
  align-items:center;
  gap:8px;
  max-width:30px;
  overflow:hidden;
  vertical-align:middle;
  margin-left:8px;
  transition:max-width .32s ease;
}

.footer-inline-info.open{
  max-width:760px;
}

.footer-info-btn{
  width:26px;
  height:26px;
  border-radius:999px;
  border:1px solid rgba(243,213,157,.28);
  background:rgba(255,255,255,.08);
  color:var(--brand-gold-light);
  display:inline-grid;
  place-items:center;
  cursor:pointer;
  flex:0 0 auto;
  padding:0;
}

.footer-info-btn:hover{
  background:rgba(255,255,255,.14);
  border-color:rgba(243,213,157,.55);
}

.footer-info-btn .material-symbols-rounded{
  font-size:1rem;
}

.footer-info-text{
  opacity:0;
  transform:translateX(-6px);
  color:rgba(255,255,255,.42);
  font-size:.88rem;
  line-height:1.55;
  white-space:nowrap;
  transition:opacity .24s ease, transform .24s ease;
}

.footer-inline-info.open .footer-info-text{
  opacity:1;
  transform:translateX(0);
}

@media (max-width:620px){
  .footer-inline-info.open{
    max-width:100%;
  }

  .footer-info-text{
    white-space:normal;
  }
}