:root {
  --site-gold: #d4b07a;
  --site-gold-soft: #f0d7a8;
  --site-ink: #0a0c12;
  --site-panel: rgba(10, 14, 24, 0.78);
  --site-line: rgba(180, 200, 230, 0.35);
  --site-navy: #152238;
}

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

html { scroll-behavior: smooth; }

body.site-landing {
  margin: 0;
  font-family: "Manrope", system-ui, sans-serif;
  background: #07090f;
  color: #f3e8d8;
  overflow-x: hidden;
}

body.site-landing h1,
body.site-landing h2,
body.site-landing h3,
body.site-landing .site-stage-brand {
  font-family: "Cinzel", "Times New Roman", serif;
  letter-spacing: 0.04em;
}

/* ===== Immersive stage (Mark2-like) ===== */
.site-stage {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
  isolation: isolate;
}

.site-stage-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center top;
  transform: scale(1.04);
  z-index: 0;
}

.site-stage-veil {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(ellipse at 50% 35%, rgba(40, 70, 120, 0.18), transparent 50%),
    linear-gradient(180deg, rgba(5, 8, 14, 0.35) 0%, rgba(5, 8, 14, 0.15) 40%, rgba(5, 8, 14, 0.88) 100%);
}

.site-stage-embers {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background-image:
    radial-gradient(2px 2px at 20% 30%, rgba(255, 180, 80, 0.55), transparent),
    radial-gradient(2px 2px at 70% 45%, rgba(255, 200, 100, 0.4), transparent),
    radial-gradient(1.5px 1.5px at 40% 70%, rgba(255, 160, 60, 0.45), transparent),
    radial-gradient(2px 2px at 85% 25%, rgba(255, 190, 90, 0.35), transparent);
  animation: siteEmber 8s ease-in-out infinite alternate;
  opacity: 0.7;
}

@keyframes siteEmber {
  from { transform: translateY(0); opacity: 0.45; }
  to { transform: translateY(-18px); opacity: 0.85; }
}

.site-stage-char {
  position: absolute;
  z-index: 3;
  pointer-events: none;
  user-select: none;
  filter: drop-shadow(0 24px 40px rgba(0, 0, 0, 0.55));
}

.site-stage-char--main {
  left: 50%;
  bottom: 6%;
  height: min(78vh, 820px);
  width: auto;
  max-width: 46vw;
  object-fit: contain;
  transform: translateX(-50%);
  animation: siteFloat 5.5s ease-in-out infinite;
}

.site-stage-char--left,
.site-stage-char--right {
  bottom: 4%;
  height: min(58vh, 560px);
  width: auto;
  max-width: 28vw;
  object-fit: contain;
  opacity: 0.88;
}

.site-stage-char--left {
  left: 4%;
  animation: siteFloatL 6s ease-in-out infinite;
}

.site-stage-char--right {
  right: 4%;
  transform: scaleX(-1);
  animation: siteFloatR 6.5s ease-in-out infinite;
}

@keyframes siteFloat {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-14px); }
}
@keyframes siteFloatL {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
@keyframes siteFloatR {
  0%, 100% { transform: scaleX(-1) translateY(0); }
  50% { transform: scaleX(-1) translateY(-12px); }
}

.site-banner {
  position: absolute;
  top: 8%;
  z-index: 5;
  width: 92px;
  min-height: 210px;
  padding: 28px 10px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  color: #ffe7b0;
  background:
    linear-gradient(180deg, #8b1e1e 0%, #5a1010 55%, #3a0a0a 100%);
  border: 2px solid #d4b07a;
  border-radius: 8px 8px 18px 18px;
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.45);
  font-family: "Cinzel", serif;
}

.site-banner span {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-weight: 800;
  font-size: 0.95rem;
  letter-spacing: 0.12em;
}

.site-banner small {
  writing-mode: vertical-rl;
  font-size: 0.68rem;
  opacity: 0.85;
  letter-spacing: 0.08em;
}

.site-banner--left { left: calc(50% - min(34vw, 340px)); }
.site-banner--right { right: calc(50% - min(34vw, 340px)); }

.site-stage-center {
  position: relative;
  z-index: 6;
  width: min(920px, 92vw);
  margin: 0 auto 2.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.site-tagline {
  display: inline-block;
  max-width: 640px;
  padding: 0.55rem 1.25rem;
  background: linear-gradient(90deg, rgba(12, 22, 40, 0.2), rgba(18, 34, 62, 0.92), rgba(12, 22, 40, 0.2));
  border-top: 1px solid rgba(200, 220, 255, 0.35);
  border-bottom: 1px solid rgba(200, 220, 255, 0.35);
  color: #e8f0ff;
  font-weight: 600;
  font-size: clamp(0.85rem, 1.6vw, 1.05rem);
}

.site-stage-logo {
  max-height: 88px;
  width: auto;
  filter: drop-shadow(0 10px 24px rgba(0, 0, 0, 0.55));
}

.site-stage-brand {
  margin: 0;
  font-size: clamp(1.8rem, 4.5vw, 3.4rem);
  color: var(--site-gold-soft);
  text-shadow: 0 8px 28px rgba(0, 0, 0, 0.7);
}

.site-stage-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  justify-content: center;
  margin-top: 0.35rem;
}

.site-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 132px;
  padding: 0.72rem 1.2rem;
  border-radius: 4px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-decoration: none !important;
  text-transform: uppercase;
  font-size: 0.86rem;
  transition: transform 0.2s ease, filter 0.2s ease;
}

.site-cta:hover { transform: translateY(-2px); filter: brightness(1.08); }

.site-cta--gold {
  color: #1a120a;
  background: linear-gradient(180deg, #e0c07a, #b8894d);
  border: 1px solid #f0d7a8;
}

.site-cta--ghost {
  color: #f3e8d8;
  background: rgba(10, 16, 28, 0.55);
  border: 1px solid rgba(220, 230, 245, 0.45);
}

.site-scroll-hint {
  margin-top: 0.4rem;
  color: rgba(240, 215, 168, 0.8);
  font-size: 1.2rem;
  animation: siteBounce 1.6s ease-in-out infinite;
}

@keyframes siteBounce {
  0%, 100% { transform: translateY(0); opacity: 0.55; }
  50% { transform: translateY(8px); opacity: 1; }
}

/* ===== Sticky floats ===== */
.site-float {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1200;
  display: flex;
  flex-direction: column;
  gap: 16px;
  pointer-events: none;
}

.site-float--left { left: 14px; }
.site-float--right { right: 14px; }

.site-float-btn {
  pointer-events: auto;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 148px;
  height: 44px;
  padding: 0 26px;
  margin-top: 10px;
  text-decoration: none !important;
  color: #f0e0b8 !important;
  font-family: "Cinzel", "Times New Roman", serif;
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: linear-gradient(180deg, rgba(36, 52, 86, 0.96) 0%, rgba(14, 22, 40, 0.98) 100%);
  border: 2px solid rgba(220, 230, 245, 0.88);
  clip-path: polygon(10px 0, calc(100% - 10px) 0, 100% 50%, calc(100% - 10px) 100%, 10px 100%, 0 50%);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.45), inset 0 0 0 1px rgba(180, 200, 230, 0.25);
  transition: transform 0.2s ease, filter 0.2s ease;
}

.site-float-btn:hover {
  transform: translateY(-2px) scale(1.03);
  color: #ffe9b0 !important;
  filter: brightness(1.08);
}

.site-float-ico {
  position: absolute;
  top: -15px;
  left: 50%;
  width: 30px;
  height: 30px;
  transform: translateX(-50%) rotate(45deg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, #1b2a48, #0c1426);
  border: 2px solid rgba(220, 230, 245, 0.9);
}

.site-float-ico i {
  transform: rotate(-45deg);
  color: #d8b56a;
  font-size: 0.85rem;
}

.site-music-btn {
  pointer-events: auto;
  align-self: center;
  margin-top: 6px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0.55rem 0.9rem;
  border-radius: 8px;
  border: 2px solid #d4b07a;
  background: linear-gradient(180deg, #2a1a0c, #120c08);
  color: #f0d7a8;
  font-family: "Cinzel", serif;
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.4);
}

.site-music-btn.is-on {
  background: linear-gradient(180deg, #4a3214, #1e1408);
  color: #ffe9b0;
}

/* ===== Content sections ===== */
.site-onsoz,
.site-features,
.site-classes,
.site-cta-band {
  position: relative;
  z-index: 2;
  padding: 4.5rem 0;
}

.site-onsoz {
  background:
    linear-gradient(180deg, rgba(8, 10, 16, 0.96), rgba(8, 10, 16, 0.92)),
    radial-gradient(ellipse at 50% 0%, rgba(80, 50, 20, 0.25), transparent 55%);
}

.site-features {
  background:
    linear-gradient(180deg, rgba(10, 12, 18, 0.95), rgba(10, 12, 18, 0.96)),
    radial-gradient(ellipse at 20% 30%, rgba(40, 70, 120, 0.18), transparent 45%);
}

.site-classes {
  background:
    linear-gradient(180deg, rgba(8, 10, 16, 0.96), rgba(8, 10, 16, 0.94)),
    radial-gradient(ellipse at 80% 20%, rgba(120, 60, 20, 0.18), transparent 45%);
}

.site-onsoz h2,
.site-features h2,
.site-classes h2,
.site-cta-band h2 {
  color: var(--site-gold-soft);
  margin-bottom: 0.6rem;
}

.site-section-sub {
  color: rgba(243, 232, 216, 0.75);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.site-card,
.site-system-card,
.site-class-card {
  background: var(--site-panel);
  border: 1px solid var(--site-line);
  border-radius: 12px;
  height: 100%;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
}

.site-card { padding: 1.35rem; }
.site-card h3,
.site-system-body h3,
.site-class-card h3 { color: var(--site-gold); margin-bottom: 0.55rem; }
.site-card p,
.site-system-body p,
.site-class-card p {
  margin: 0;
  color: rgba(243, 232, 216, 0.86);
  line-height: 1.65;
}

.site-system-card { overflow: hidden; transition: transform 0.25s ease, border-color 0.25s ease; }
.site-system-card:hover,
.site-class-card:hover {
  transform: translateY(-6px);
  border-color: rgba(240, 215, 168, 0.55);
}

.site-system-media {
  aspect-ratio: 16 / 10;
  background: #0c1018;
  overflow: hidden;
}

.site-system-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.site-system-body { padding: 1.15rem 1.2rem 1.35rem; }

.site-feature-item {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(212, 176, 122, 0.22);
  border-radius: 8px;
  padding: 1rem 0.75rem;
  text-align: center;
  font-weight: 700;
  color: var(--site-gold-soft);
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-class-card {
  padding: 1.4rem 1.1rem;
  text-align: center;
}

.site-class-card img {
  width: 96px;
  height: 120px;
  object-fit: contain;
  margin-bottom: 0.75rem;
  filter: drop-shadow(0 10px 18px rgba(0, 0, 0, 0.45));
}

.site-cta-band {
  background:
    radial-gradient(ellipse at 50% 30%, rgba(120, 70, 30, 0.35), transparent 55%),
    linear-gradient(180deg, #141018 0%, #0a0c12 55%, #07090f 100%);
  border-top: 1px solid rgba(212, 176, 122, 0.18);
}

.site-footer {
  padding: 2.5rem 0 3rem;
  background: #06070c;
  border-top: 1px solid rgba(212, 176, 122, 0.18);
}

.site-footer-logo { max-height: 56px; margin-bottom: 0.85rem; }
.site-footer p { margin-bottom: 0.35rem; color: rgba(243, 232, 216, 0.7); }
.site-footer-links a {
  color: var(--site-gold);
  margin: 0 0.6rem;
  text-decoration: none;
}

#topScroll {
  position: fixed;
  right: 18px;
  bottom: 18px;
  display: none;
  z-index: 50;
  border-radius: 999px;
  width: 44px;
  height: 44px;
  padding: 0;
}

@media (max-width: 1199.98px) {
  .site-float-btn { min-width: 122px; height: 40px; font-size: 0.72rem; padding: 0 18px; }
  .site-banner { width: 74px; min-height: 170px; }
  .site-stage-char--left,
  .site-stage-char--right { opacity: 0.55; max-width: 22vw; }
}

@media (max-width: 991.98px) {
  .site-float { display: none; }
  .site-banner { display: none; }
  .site-stage-char--left,
  .site-stage-char--right { display: none; }
  .site-stage-char--main {
    max-width: 78vw;
    height: min(58vh, 520px);
    bottom: 18%;
  }
  .site-stage-center {
    margin-bottom: 1.25rem;
    padding: 0 0.75rem;
  }
  .site-stage-logo { max-height: 64px; }
  .site-onsoz,
  .site-features,
  .site-classes,
  .site-cta-band { padding: 2.75rem 0; }
  .site-stage-cta { flex-direction: column; align-items: stretch; width: min(320px, 100%); }
  .site-cta { width: 100%; }
}

@media (max-width: 575.98px) {
  .site-stage-char--main { height: min(48vh, 380px); bottom: 24%; }
  .site-tagline { font-size: 0.82rem; padding: 0.45rem 0.8rem; }
}