@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700;900&family=Inter:wght@300;400;500;600&family=Noto+Sans+TC:wght@300;400;500;700&display=swap');

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

:root {
  --bg:       #141414;
  --bg2:      #1c1c1c;
  --bg3:      #252525;
  --purple:   #9567ff;
  --cyan:     #a8deee;
  --white:    #ffffff;
  --gray:     rgba(255,255,255,.6);
  --gray2:    rgba(255,255,255,.15);
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--white);
  font-family: 'Inter', 'Noto Sans TC', sans-serif;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

/* ─── HEADER ─── */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 80px; padding: 0 60px;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(20,20,20,.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray2);
  transition: background .3s;
}

.header-logo img { height: 40px; }

.header-nav { display: flex; align-items: center; gap: 40px; }

.header-nav a {
  font-size: .875rem; font-weight: 500; letter-spacing: .05em;
  color: var(--gray); text-transform: uppercase;
  transition: color .2s;
}
.header-nav a:hover { color: var(--white); }

.lang-toggle {
  font-size: .875rem; font-weight: 500; color: var(--gray);
  cursor: pointer; border: 1px solid var(--gray2);
  padding: 4px 12px; border-radius: 20px;
  transition: all .2s;
}
.lang-toggle:hover { border-color: var(--purple); color: var(--purple); }

.menu-btn {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 4px;
}
.menu-btn span {
  display: block; width: 24px; height: 2px;
  background: var(--white); border-radius: 2px;
  transition: all .3s; position: relative;
}

body.menu-open .menu-btn span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.menu-open .menu-btn span:nth-child(2) { opacity: 0; transform: scaleX(0); }
body.menu-open .menu-btn span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav overlay */
.nav-overlay {
  display: none; position: fixed; inset: 0; z-index: 99;
  background: rgba(20,20,20,.97);
  flex-direction: column; align-items: center; justify-content: center; gap: 32px;
}
.nav-overlay.open { display: flex; }
.nav-overlay a {
  font-size: 2rem; font-weight: 700; font-family: 'Montserrat', sans-serif;
  color: var(--gray); transition: color .2s;
}
.nav-overlay a:hover { color: var(--white); }

/* ─── HERO ─── */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 100px 40px 60px;
  position: relative; overflow: hidden;
}

.hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(149,103,255,.18) 0%, transparent 70%),
              radial-gradient(ellipse 50% 40% at 80% 70%, rgba(168,222,238,.1) 0%, transparent 60%);
}

.hero-logo { width: 100px; margin: 0 auto 32px; position: relative; }

.hero-eyebrow {
  font-size: .875rem; font-weight: 600; letter-spacing: .2em;
  color: var(--cyan); text-transform: uppercase; margin-bottom: 20px;
  position: relative;
}

.hero-title {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(3rem, 8vw, 6.5rem); font-weight: 900; line-height: 1.05;
  letter-spacing: -.02em; margin-bottom: 28px; position: relative;
}

.hero-title span {
  background: linear-gradient(135deg, var(--white) 30%, var(--purple));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

.hero-sub {
  max-width: 560px; margin: 0 auto 16px;
  font-size: 1.125rem; font-weight: 300; color: var(--gray); line-height: 1.7;
  position: relative;
}

.hero-sub-zh {
  max-width: 560px; margin: 0 auto 48px;
  font-size: 1rem; font-family: 'Noto Sans TC', sans-serif;
  color: rgba(255,255,255,.4); line-height: 1.8; position: relative;
}

.hero-cta {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: .9375rem; font-weight: 600; letter-spacing: .05em;
  color: var(--bg); background: var(--purple);
  padding: 14px 36px; border-radius: 40px;
  transition: opacity .2s, transform .2s;
  position: relative;
}
.hero-cta:hover { opacity: .85; transform: translateY(-2px); }

/* ─── SECTION COMMONS ─── */
.section { padding: 100px 60px; }

.section-label {
  font-size: .8125rem; font-weight: 600; letter-spacing: .2em;
  color: var(--purple); text-transform: uppercase; margin-bottom: 16px;
}

.section-title {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(1.75rem, 4vw, 3rem); font-weight: 900; line-height: 1.15;
  margin-bottom: 24px;
}

.section-body {
  font-size: 1rem; font-weight: 300; color: var(--gray); line-height: 1.85;
  max-width: 680px;
}

.section-body-zh {
  font-family: 'Noto Sans TC', sans-serif;
  font-size: .9375rem; color: rgba(255,255,255,.4); line-height: 1.9;
  max-width: 680px; margin-top: 16px;
}

/* ─── ABOUT ─── */
.about { background: var(--bg2); }

.about-inner {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center;
}

.about-badge {
  display: inline-block; padding: 6px 16px; border-radius: 20px;
  border: 1px solid var(--purple); font-size: .8125rem; font-weight: 500;
  color: var(--purple); margin-bottom: 20px;
}

.about-highlight {
  margin-top: 32px; padding: 24px 28px;
  background: var(--bg3); border-left: 3px solid var(--cyan); border-radius: 4px;
}
.about-highlight p {
  font-size: .9375rem; color: var(--gray); line-height: 1.75;
}

.about-stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 40px;
}
.stat-box {
  padding: 24px; background: var(--bg3); border-radius: 8px;
  border: 1px solid var(--gray2);
}
.stat-num {
  font-family: 'Montserrat', sans-serif; font-size: 2.5rem; font-weight: 900;
  background: linear-gradient(135deg, var(--purple), var(--cyan));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  line-height: 1; margin-bottom: 8px;
}
.stat-label { font-size: .8125rem; color: var(--gray); font-weight: 400; }

/* ─── PLATFORMS ─── */
.platforms { text-align: center; }
.platforms-inner { max-width: 1000px; margin: 0 auto; }
.platforms-grid {
  display: flex; flex-wrap: wrap;
  align-items: center; justify-content: center; gap: 20px 40px; margin-top: 48px;
}
.platform-item {
  font-family: 'Montserrat', sans-serif; font-size: 1rem; font-weight: 700;
  letter-spacing: .05em; color: rgba(255,255,255,.35);
  padding: 14px 24px; border: 1px solid var(--gray2); border-radius: 8px;
  transition: all .25s;
}
.platform-item:hover { color: var(--white); border-color: rgba(255,255,255,.3); }

/* ─── NFT CONTENTS ─── */
.nft { background: var(--bg2); }
.nft-inner { max-width: 1200px; margin: 0 auto; }
.nft-header { margin-bottom: 60px; }

.nft-categories {
  display: flex; gap: 12px; margin-top: 32px; flex-wrap: wrap;
}
.nft-cat {
  padding: 8px 20px; border-radius: 20px; font-size: .875rem; font-weight: 500;
  cursor: pointer; transition: all .2s;
  border: 1px solid var(--gray2); color: var(--gray);
}
.nft-cat.active, .nft-cat:hover {
  background: var(--purple); border-color: var(--purple); color: var(--white);
}

.nft-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px;
}

.nft-card {
  background: var(--bg3); border-radius: 12px; overflow: hidden;
  border: 1px solid var(--gray2); transition: transform .25s, border-color .25s;
}
.nft-card:hover { transform: translateY(-4px); border-color: rgba(149,103,255,.4); }

.nft-card-img {
  width: 100%; aspect-ratio: 1;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Montserrat', sans-serif; font-size: 1.5rem; font-weight: 700;
  letter-spacing: .1em; color: rgba(255,255,255,.2);
}

.nft-card-body { padding: 20px; }
.nft-card-tag {
  font-size: .75rem; font-weight: 600; letter-spacing: .15em; text-transform: uppercase;
  color: var(--purple); margin-bottom: 8px;
}
.nft-card-title {
  font-family: 'Montserrat', sans-serif; font-size: 1.0625rem; font-weight: 700;
  margin-bottom: 8px; line-height: 1.3;
}
.nft-card-desc {
  font-size: .8125rem; color: var(--gray); line-height: 1.6; margin-bottom: 16px;
}
.nft-card-footer {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 16px; border-top: 1px solid var(--gray2);
}
.nft-price { font-family: 'Montserrat', sans-serif; font-size: .9375rem; font-weight: 700; }
.nft-edition { font-size: .8125rem; color: var(--gray); }

/* ─── UPCOMING ─── */
.upcoming-inner { max-width: 1200px; margin: 0 auto; }
.upcoming-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; margin-top: 60px;
}
.upcoming-card {
  background: var(--bg3); border-radius: 12px; padding: 36px;
  border: 1px solid var(--gray2); transition: border-color .25s;
  position: relative; overflow: hidden;
}
.upcoming-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--purple), var(--cyan));
}
.upcoming-card:hover { border-color: rgba(149,103,255,.4); }
.upcoming-card-label {
  font-size: .75rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase;
  color: var(--cyan); margin-bottom: 12px;
}
.upcoming-card-title {
  font-family: 'Montserrat', sans-serif; font-size: 1.375rem; font-weight: 800;
  margin-bottom: 12px; line-height: 1.25;
}
.upcoming-card-desc {
  font-size: .9375rem; color: var(--gray); line-height: 1.7;
}
.upcoming-date {
  margin-top: 24px; font-size: .8125rem; color: rgba(255,255,255,.35);
  display: flex; align-items: center; gap: 8px;
}
.upcoming-date::before {
  content: ''; display: block; width: 6px; height: 6px;
  background: var(--purple); border-radius: 50%;
}

/* ─── SERVICES ─── */
.services { background: var(--bg2); }
.services-inner { max-width: 1200px; margin: 0 auto; }
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 60px;
}
.service-card {
  padding: 36px 28px; background: var(--bg); border-radius: 12px;
  border: 1px solid var(--gray2); transition: border-color .25s;
}
.service-card:hover { border-color: rgba(149,103,255,.35); }
.service-icon {
  width: 52px; height: 52px; border-radius: 12px;
  background: rgba(149,103,255,.15);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem; margin-bottom: 20px;
}
.service-title {
  font-family: 'Montserrat', sans-serif; font-size: 1.125rem; font-weight: 700;
  margin-bottom: 12px;
}
.service-desc { font-size: .9rem; color: var(--gray); line-height: 1.75; }

/* ─── CONTACT ─── */
.contact { text-align: center; }
.contact-inner {
  max-width: 640px; margin: 0 auto;
}
.contact-links {
  display: flex; justify-content: center; gap: 20px; margin-top: 48px; flex-wrap: wrap;
}
.contact-link {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 28px; border-radius: 8px;
  border: 1px solid var(--gray2);
  font-size: .9375rem; font-weight: 500;
  transition: all .2s;
}
.contact-link:hover { border-color: var(--purple); color: var(--purple); }
.contact-link svg { flex-shrink: 0; }

/* ─── FOOTER ─── */
.footer {
  padding: 32px 60px;
  border-top: 1px solid var(--gray2);
  display: flex; align-items: center; justify-content: space-between;
  font-size: .8125rem; color: rgba(255,255,255,.3);
}
.footer-logo img { height: 28px; opacity: .5; }

/* ─── SCROLL REVEAL ─── */
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
.fade-up { animation: fadeUp .6s ease both; }
.delay-1 { animation-delay: .1s; }
.delay-2 { animation-delay: .2s; }
.delay-3 { animation-delay: .3s; }

/* ─── PAGE FADE ─── */
#app { animation: pageFadeIn .35s ease; }
@keyframes pageFadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  .header { padding: 0 32px; }
  .section { padding: 80px 32px; }
  .about-inner { grid-template-columns: 1fr; gap: 48px; }
  .nft-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .header { padding: 0 20px; }
  .header-nav, .lang-toggle { display: none; }
  .menu-btn { display: flex; }
  .section { padding: 60px 20px; }
  .hero { padding: 80px 20px 40px; }
  .nft-grid, .upcoming-grid, .services-grid { grid-template-columns: 1fr; }
  .footer { flex-direction: column; gap: 12px; text-align: center; }
  .about-stats { grid-template-columns: 1fr; }
  .platforms-grid { gap: 12px 20px; }
}