/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', 'Noto Sans JP', -apple-system, system-ui, sans-serif;
  background: #0a0a14;
  color: #ffffff;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

:root {
  --accent-cyan: #00E5FF;
  --accent-magenta: #FF1AC2;
  --bg-deep: #0a0a14;
  --bg-soft: #11121e;
  --text-muted: rgba(255,255,255,0.6);
  --border-faint: rgba(255,255,255,0.08);
}

.container { width: min(1180px, 92%); margin-inline: auto; }
.accent { color: var(--accent-cyan); }
.accent-text { color: var(--accent-magenta); font-weight: 700; }

/* ===== Header ===== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 24px 5%;
  display: flex; justify-content: space-between; align-items: center;
  backdrop-filter: blur(16px);
  background: rgba(10,10,20,0.4);
  border-bottom: 1px solid var(--border-faint);
}
.logo {
  font-family: 'Unbounded', 'Inter', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
}
.site-nav { display: flex; gap: 32px; align-items: center; font-size: 0.88rem; }
.site-nav a { color: var(--text-muted); transition: color 0.3s; }
.site-nav a:hover { color: #fff; }
.nav-cta {
  padding: 10px 22px;
  background: var(--accent-cyan);
  color: #0a0a14 !important;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.3s;
}
.nav-cta:hover { transform: translateY(-2px); }

/* ===== HERO ===== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.hero-video {
  position: absolute; top: 50%; left: 50%;
  min-width: 100%; min-height: 100%;
  width: auto; height: auto;
  transform: translate(-50%, -50%);
  object-fit: cover;
  z-index: 1;
}
.hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10,10,20,0.4) 0%, rgba(10,10,20,0.6) 60%, rgba(10,10,20,0.95) 100%);
  z-index: 2;
}
.hero-content {
  position: relative; z-index: 3;
  text-align: center;
  width: min(900px, 92%);
}
.hero-eyebrow {
  font-family: 'Unbounded', sans-serif;
  font-size: 0.78rem; letter-spacing: 0.4em;
  color: var(--accent-cyan);
  margin-bottom: 28px;
}
.hero-title {
  font-family: 'Unbounded', 'Inter', sans-serif;
  font-weight: 900;
  font-size: clamp(2.6rem, 7vw, 5.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 36px;
}
.title-line-1 { display: block; }
.title-line-2 { display: block; }
.hero-sub {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(1rem, 1.5vw, 1.3rem);
  font-weight: 400;
  color: rgba(255,255,255,0.85);
  margin-bottom: 80px;
  line-height: 1.8;
}
.hero-scroll {
  display: inline-flex; flex-direction: column; align-items: center; gap: 14px;
  font-size: 0.72rem; letter-spacing: 0.4em;
  color: var(--text-muted);
  font-family: 'Unbounded', sans-serif;
}
.scroll-line {
  width: 1px; height: 50px;
  background: linear-gradient(to bottom, var(--accent-cyan), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.5); opacity: 0.4; }
}

/* ===== Section Common ===== */
section { padding: 140px 0; }
.section-label {
  font-family: 'Unbounded', sans-serif;
  font-size: 0.72rem; letter-spacing: 0.4em;
  color: var(--accent-cyan);
  margin-bottom: 24px;
}
.section-title {
  font-family: 'Unbounded', 'Noto Sans JP', sans-serif;
  font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 64px;
}

/* ===== PROBLEM ===== */
.problem { background: var(--bg-deep); }
.strike { color: var(--text-muted); text-decoration: line-through; text-decoration-thickness: 2px; }
.problem-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 64px;
}
.stat-card {
  padding: 48px 36px;
  background: var(--bg-soft);
  border: 1px solid var(--border-faint);
  border-radius: 16px;
}
.stat-num {
  font-family: 'Unbounded', sans-serif;
  font-weight: 700;
  font-size: clamp(2.6rem, 5vw, 4rem);
  color: var(--accent-magenta);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-unit { color: var(--text-muted); font-size: 1rem; margin-bottom: 24px; }
.stat-label { font-size: 0.92rem; color: rgba(255,255,255,0.85); line-height: 1.6; }
.problem-copy {
  text-align: center;
  font-size: clamp(1rem, 1.4vw, 1.18rem);
  color: rgba(255,255,255,0.85);
  font-family: 'Noto Sans JP', sans-serif;
  line-height: 2;
}

/* ===== SOLUTION ===== */
.solution {
  background: linear-gradient(180deg, var(--bg-deep) 0%, #06070c 100%);
}
.solution-copy {
  text-align: center;
  font-size: clamp(0.98rem, 1.3vw, 1.15rem);
  color: rgba(255,255,255,0.85);
  margin-bottom: 80px;
  font-family: 'Noto Sans JP', sans-serif;
  line-height: 2;
}
.solution-compare {
  display: flex; justify-content: center; align-items: center;
  gap: 48px;
  flex-wrap: wrap;
}
.compare-col {
  flex: 1; min-width: 260px; max-width: 360px;
  padding: 48px 32px;
  border-radius: 20px;
  text-align: center;
}
.compare-before {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-faint);
}
.compare-after {
  background: linear-gradient(135deg, rgba(0,229,255,0.1), rgba(255,26,194,0.1));
  border: 1px solid rgba(0,229,255,0.4);
}
.compare-label {
  font-family: 'Unbounded', sans-serif;
  font-size: 0.72rem; letter-spacing: 0.4em;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.compare-price {
  font-family: 'Unbounded', sans-serif;
  font-size: 2.2rem; font-weight: 700;
  margin-bottom: 12px;
}
.compare-before .compare-price { color: var(--text-muted); text-decoration: line-through; }
.compare-time { color: rgba(255,255,255,0.7); font-size: 0.95rem; }
.compare-arrow {
  font-size: 2.4rem; color: var(--accent-cyan);
  font-weight: 300;
}

/* ===== FEATURES ===== */
.features { background: var(--bg-deep); }
.features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.feature-card {
  padding: 56px 36px;
  background: var(--bg-soft);
  border: 1px solid var(--border-faint);
  border-radius: 20px;
  transition: transform 0.4s, border-color 0.4s, box-shadow 0.4s;
}
.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0,229,255,0.4);
  box-shadow: 0 24px 60px rgba(0,229,255,0.08);
}
.feature-icon {
  font-size: 2.8rem; color: var(--accent-cyan);
  margin-bottom: 28px;
  font-family: 'Unbounded', sans-serif;
}
.feature-card h3 {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 1.4rem; font-weight: 700;
  margin-bottom: 18px;
}
.feature-card p {
  font-family: 'Noto Sans JP', sans-serif;
  color: rgba(255,255,255,0.75);
  font-size: 0.96rem;
  line-height: 1.85;
}

/* ===== PRICE ===== */
.price {
  background: linear-gradient(180deg, var(--bg-deep) 0%, #06070c 100%);
}
.price-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
  align-items: stretch;
}
.price-card {
  position: relative;
  padding: 56px 36px;
  background: var(--bg-soft);
  border: 1px solid var(--border-faint);
  border-radius: 20px;
  display: flex; flex-direction: column;
}
.price-card.featured {
  background: linear-gradient(160deg, rgba(0,229,255,0.06), rgba(255,26,194,0.06));
  border-color: var(--accent-cyan);
  transform: scale(1.04);
  box-shadow: 0 30px 80px rgba(0,229,255,0.12);
}
.featured-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  padding: 7px 18px;
  background: var(--accent-cyan);
  color: #0a0a14;
  font-family: 'Unbounded', sans-serif;
  font-size: 0.68rem; letter-spacing: 0.3em;
  font-weight: 700;
  border-radius: 999px;
}
.price-name {
  font-family: 'Unbounded', sans-serif;
  font-size: 0.95rem; letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.price-amount {
  font-family: 'Unbounded', sans-serif;
  font-size: 2.8rem; font-weight: 700;
  line-height: 1;
  margin-bottom: 36px;
}
.yen { font-size: 1.5rem; vertical-align: middle; margin-right: 6px; color: var(--text-muted); }
.tax { font-size: 1.1rem; color: var(--text-muted); }
.price-list { flex: 1; }
.price-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--border-faint);
  font-size: 0.95rem;
  color: rgba(255,255,255,0.85);
  font-family: 'Noto Sans JP', sans-serif;
}
.price-list li::before { content: '✓ '; color: var(--accent-cyan); font-weight: 700; margin-right: 8px; }

/* ===== PROCESS ===== */
.process { background: var(--bg-deep); }
.process-timeline {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px;
}
.step {
  padding: 40px 28px;
  background: var(--bg-soft);
  border: 1px solid var(--border-faint);
  border-radius: 16px;
  position: relative;
}
.step-num {
  font-family: 'Unbounded', sans-serif;
  font-size: 2.2rem; font-weight: 700;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
}
.step h3 {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 1.2rem; font-weight: 700;
  margin-bottom: 12px;
}
.step p {
  font-family: 'Noto Sans JP', sans-serif;
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  line-height: 1.75;
}

/* ===== CTA ===== */
.cta {
  background: radial-gradient(circle at 30% 50%, rgba(0,229,255,0.08), transparent 50%),
              radial-gradient(circle at 70% 50%, rgba(255,26,194,0.08), transparent 50%),
              var(--bg-deep);
  text-align: center;
  padding: 180px 0;
}
.cta-title {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.4;
  margin-bottom: 36px;
  letter-spacing: -0.01em;
}
.cta-sub {
  font-size: clamp(0.95rem, 1.2vw, 1.08rem);
  color: rgba(255,255,255,0.75);
  margin-bottom: 56px;
  font-family: 'Noto Sans JP', sans-serif;
}
.cta-button {
  display: inline-block;
  padding: 22px 56px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-magenta));
  color: #fff;
  font-family: 'Unbounded', sans-serif;
  font-size: 1rem; font-weight: 700; letter-spacing: 0.08em;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
  margin-bottom: 28px;
}
.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 24px 60px rgba(0,229,255,0.3);
}
.cta-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: 'Noto Sans JP', sans-serif;
}

/* ===== Footer ===== */
.site-footer {
  padding: 56px 0 40px;
  background: #06070c;
  border-top: 1px solid var(--border-faint);
  text-align: center;
}
.footer-logo {
  font-family: 'Unbounded', sans-serif;
  font-weight: 700;
  margin-bottom: 12px;
}
.footer-copy {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ===== Animations ===== */
[data-anim="fade-up"] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1s cubic-bezier(0.22,1,0.36,1), transform 1s cubic-bezier(0.22,1,0.36,1);
}
[data-anim="fade-up"].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .site-nav { gap: 18px; font-size: 0.78rem; }
  .site-nav a:not(.nav-cta) { display: none; }
  .problem-stats, .features-grid, .price-grid, .process-timeline {
    grid-template-columns: 1fr;
  }
  .price-card.featured { transform: none; }
  .solution-compare { flex-direction: column; gap: 24px; }
  .compare-arrow { transform: rotate(90deg); }
  section { padding: 100px 0; }
  .cta { padding: 120px 0; }
}