/* =========================================================
   BABY-BOLAN × POME — Style Sheet
   Dark × Gold luxury theme
========================================================= */

:root {
  --color-bg: #0a0806;
  --color-bg-alt: #120e08;
  --color-panel: #17130b;
  --color-gold: #d4af37;
  --color-gold-light: #f5d97e;
  --color-gold-deep: #a8802a;
  --color-text: #f3ecd9;
  --color-text-dim: #cabf9e;
  --color-border: rgba(212, 175, 55, 0.35);
  --font-serif: 'Cinzel', 'Noto Sans JP', serif;
  --font-sans: 'Noto Sans JP', sans-serif;
  --max-width: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.85;
  overflow-x: hidden;
  position: relative;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; }

/* Background particle canvas */
#particle-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
}

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

/* Common section spacing */
.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 90px 24px;
}
.section-inner.narrow { max-width: 760px; }

.section-tag {
  letter-spacing: 0.3em;
  font-size: 0.78rem;
  color: var(--color-gold);
  text-align: center;
  margin: 0 0 14px;
  font-family: var(--font-serif);
}

.section-title {
  text-align: center;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  margin: 0 0 50px;
  background: linear-gradient(180deg, #f5e6b8, #c9a13a);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-family: var(--font-serif);
}

.highlight-gold {
  background: linear-gradient(180deg, #f9e79b, #b8892f);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-weight: 900;
}

/* =========== Header =========== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(10, 8, 6, 0.55);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: background 0.3s, border-color 0.3s;
}
.site-header.scrolled {
  background: rgba(10, 8, 6, 0.92);
  border-bottom-color: var(--color-border);
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand-mark {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-gold-light);
  white-space: nowrap;
}
.brand-star { color: var(--color-gold); }
.main-nav {
  display: flex;
  gap: 28px;
  margin-left: 12px;
  flex: 1;
}
.main-nav a {
  font-size: 0.9rem;
  color: var(--color-text-dim);
  transition: color 0.2s;
  white-space: nowrap;
}
.main-nav a:hover { color: var(--color-gold-light); }

.entry-cta-btn {
  background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold-deep));
  color: #1a1408;
  border: none;
  padding: 10px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.2s, box-shadow 0.2s;
}
.entry-cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(212, 175, 55, 0.4);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 30px; height: 30px;
  background: none; border: none; cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 100%; height: 2px;
  background: var(--color-gold-light);
}

/* =========== Hero =========== */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 140px 20px 80px;
  overflow: hidden;
}
.hero-glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, rgba(212,175,55,0.22) 0%, rgba(212,175,55,0.06) 40%, transparent 70%);
  z-index: 0;
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
}
.hero-lead {
  font-size: clamp(1rem, 2vw, 1.3rem);
  color: var(--color-gold-light);
  margin: 0 0 6px;
  letter-spacing: 0.05em;
}
.hero-sub {
  font-size: clamp(0.95rem, 1.8vw, 1.15rem);
  color: var(--color-text-dim);
  margin: 0 0 28px;
  font-weight: 400;
}
.hero-title {
  font-family: var(--font-serif);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin: 0 0 40px;
}
.title-baby {
  font-size: clamp(2rem, 6vw, 3.6rem);
  font-weight: 900;
  letter-spacing: 0.02em;
  background: linear-gradient(180deg, #fff3c8 0%, #e8c25a 45%, #9c7423 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 40px rgba(212,175,55,0.35);
}
.title-cross {
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--color-gold);
}
.title-pome {
  font-size: clamp(2rem, 6vw, 3.6rem);
  font-weight: 900;
  color: var(--color-gold-light);
  display: flex;
  align-items: center;
  gap: 10px;
  text-shadow: 0 0 40px rgba(212,175,55,0.35);
}
.title-pome i { color: var(--color-gold); font-size: 0.6em; }

.hero-visual {
  max-width: 380px;
  margin: 0 auto 40px;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: 0 20px 60px rgba(0,0,0,0.6), 0 0 60px rgba(212,175,55,0.15);
}
.hero-visual img { width: 100%; }

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold-deep));
  color: #1a1408;
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(212, 175, 55, 0.45);
}
.btn-outline {
  background: transparent;
  color: var(--color-gold-light);
  border-color: var(--color-border);
}
.btn-outline:hover {
  background: rgba(212, 175, 55, 0.1);
  border-color: var(--color-gold);
}
.btn-large { padding: 16px 40px; font-size: 1rem; }

.scroll-hint {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}
.scroll-hint span {
  display: block;
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--color-gold), transparent);
  animation: scrollPulse 2s infinite;
}
@keyframes scrollPulse {
  0% { opacity: 0.2; transform: scaleY(0.3); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
  100% { opacity: 0.2; transform: scaleY(0.3); transform-origin: top; }
}

/* =========== Reason section =========== */
.reason-section {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
  border-top: 1px solid var(--color-border);
}
.reason-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: start;
}
.reason-text p {
  color: var(--color-text-dim);
  margin: 0 0 14px;
  font-size: 0.98rem;
}
.reason-highlight {
  color: var(--color-gold-light) !important;
  font-size: 1.3rem !important;
  font-weight: 700;
  margin: 20px 0 !important;
}
.reason-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.reason-card {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 26px;
  transition: transform 0.25s, box-shadow 0.25s;
}
.reason-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 34px rgba(0,0,0,0.4);
  border-color: var(--color-gold);
}
.reason-card i {
  font-size: 1.6rem;
  color: var(--color-gold);
  margin-bottom: 12px;
}
.reason-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  color: var(--color-gold-light);
}
.reason-card p {
  margin: 0;
  color: var(--color-text-dim);
  font-size: 0.9rem;
}

/* =========== Message section =========== */
.message-section {
  padding: 100px 20px;
  display: flex;
  justify-content: center;
}
.message-frame {
  max-width: 880px;
  width: 100%;
  border: 1px solid var(--color-gold);
  border-radius: 20px;
  padding: 60px 40px;
  text-align: center;
  background: radial-gradient(circle at 50% 0%, rgba(212,175,55,0.08), transparent 60%);
  box-shadow: 0 0 60px rgba(212, 175, 55, 0.08) inset;
}
.message-lead {
  color: var(--color-text-dim);
  margin: 0 0 24px;
  font-size: 1rem;
}
.message-main {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 3.4vw, 2.1rem);
  font-weight: 700;
  line-height: 1.6;
  margin: 0;
  color: var(--color-text);
}
.message-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 36px auto;
  width: 60%;
}
.message-sub {
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 2.6vw, 1.6rem);
  font-weight: 500;
  line-height: 1.7;
  margin: 0;
  color: var(--color-text);
}

/* =========== Privilege section =========== */
.privilege-section {
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
  text-align: center;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.privilege-line {
  margin: 0 0 12px;
  color: var(--color-text-dim);
  font-size: 1rem;
}
.privilege-strong {
  color: var(--color-gold-light) !important;
  font-size: 1.25rem !important;
  font-weight: 700;
  margin-top: 24px !important;
}
.privilege-note {
  font-size: 0.85rem !important;
  color: var(--color-text-dim) !important;
  opacity: 0.8;
  margin-bottom: 36px !important;
}

/* =========== Steps section =========== */
.steps-section { background: var(--color-bg); }
.steps-lead {
  text-align: center;
  color: var(--color-text-dim);
  margin: 0 0 8px;
  font-size: 0.95rem;
}
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 50px;
}
.step-card {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 34px 16px;
  text-align: center;
  transition: transform 0.25s, border-color 0.25s;
}
.step-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-gold);
}
.step-icon {
  width: 60px; height: 60px;
  margin: 0 auto 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle, rgba(212,175,55,0.18), transparent 70%);
  border: 1px solid var(--color-border);
}
.step-icon i { font-size: 1.4rem; color: var(--color-gold-light); }
.step-label {
  font-family: var(--font-serif);
  letter-spacing: 0.15em;
  font-size: 0.85rem;
  color: var(--color-gold);
  margin: 0 0 4px;
}
.step-ja { margin: 0; font-size: 1rem; font-weight: 500; }

/* =========== Join / form section =========== */
.join-section {
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
  border-top: 1px solid var(--color-border);
}
.join-desc {
  text-align: center;
  color: var(--color-text-dim);
  margin: -20px 0 40px;
  font-size: 0.95rem;
}
.registration-form {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: 18px;
  padding: 40px;
}
.form-row { margin-bottom: 22px; }
.form-row label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--color-gold-light);
}
.required {
  font-size: 0.7rem;
  color: #e07a5f;
  border: 1px solid #e07a5f;
  border-radius: 4px;
  padding: 1px 6px;
  margin-left: 8px;
}
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: rgba(255,255,255,0.03);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(212,175,55,0.15);
}
.form-row textarea { resize: vertical; }
.registration-form .btn { width: 100%; justify-content: center; margin-top: 8px; }
.form-status {
  text-align: center;
  margin: 16px 0 0;
  font-size: 0.9rem;
  min-height: 1.2em;
}
.form-status.success { color: #7bc47f; }
.form-status.error { color: #e07a5f; }

/* =========== Footer =========== */
.site-footer {
  background: #060504;
  border-top: 1px solid var(--color-border);
  padding: 60px 24px 0;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.4fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.footer-brand .brand-star { font-size: 1.6rem; }
.footer-brand-name {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-gold-light);
  margin: 0;
}
.footer-brand-tag {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--color-text-dim);
  margin: 2px 0 0;
}
.footer-message p {
  margin: 0 0 8px;
  font-size: 0.85rem;
  color: var(--color-text-dim);
}
.footer-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.footer-step {
  text-align: center;
  font-size: 0.72rem;
  color: var(--color-text-dim);
}
.footer-step i {
  display: block;
  font-size: 1.1rem;
  color: var(--color-gold);
  margin-bottom: 6px;
}
.footer-bottom {
  border-top: 1px solid var(--color-border);
  text-align: center;
  padding: 20px 0;
  font-size: 0.75rem;
  color: var(--color-text-dim);
}

/* =========== To top button =========== */
.to-top-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold-deep));
  color: #1a1408;
  border: none;
  cursor: pointer;
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.3s, transform 0.3s, visibility 0.3s;
  box-shadow: 0 8px 20px rgba(0,0,0,0.4);
}
.to-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* =========== Scroll-reveal animation =========== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.mobile-only { display: none; }

/* =========== Responsive =========== */
@media (max-width: 900px) {
  .reason-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner { grid-template-columns: 1fr; gap: 30px; text-align: center; }
  .footer-brand { justify-content: center; }
  .footer-steps { max-width: 320px; margin: 0 auto; }
}

@media (max-width: 760px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .site-header.nav-open .main-nav {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    background: rgba(10,8,6,0.97);
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
  }
  .entry-cta-btn { display: none; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .mobile-only { display: block; }
  .section-inner { padding: 70px 20px; }
  .message-frame { padding: 40px 24px; }
  .registration-form { padding: 26px; }
}

@media (max-width: 480px) {
  .hero-title { flex-direction: column; gap: 4px; }
  .steps-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
}