:root {
  --ink: #0c1a1f;
  --muted: #5a6b72;
  --bg: #f7fbfa;
  --bg-soft: #eef6f4;
  --panel: #ffffff;
  --line: #d7e5e2;
  --teal: #0d9488;
  --teal-deep: #0f766e;
  --teal-soft: #ccfbf1;
  --ember: #c2410c;
  --shadow: 0 14px 42px rgba(12, 26, 31, 0.08);
  --font-display: "DM Sans", "Noto Sans SC", sans-serif;
  --font-body: "Noto Sans SC", "DM Sans", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  overflow-x: hidden;
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, #f7fbfa 0%, #eef6f4 48%, #f7fbfa 100%);
}

.glow-a,
.glow-b {
  position: absolute;
  border-radius: 50%;
  filter: blur(8px);
}

.glow-a {
  width: 55vw;
  height: 40vh;
  top: -12vh;
  right: -8vw;
  background: radial-gradient(circle, rgba(13, 148, 136, 0.22), transparent 68%);
}

.glow-b {
  width: 40vw;
  height: 35vh;
  bottom: 8vh;
  left: -10vw;
  background: radial-gradient(circle, rgba(194, 65, 12, 0.08), transparent 70%);
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 5vw;
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(247, 251, 250, 0.88);
  border-bottom: 1px solid rgba(215, 229, 226, 0.9);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.08rem;
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  gap: 1.6rem;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}

.nav a:hover { color: var(--teal-deep); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.3rem;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 650;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--teal);
  color: #fff;
  box-shadow: 0 10px 28px rgba(13, 148, 136, 0.28);
}

.btn-primary:hover { background: var(--teal-deep); }

.btn-secondary {
  border-color: var(--line);
  color: var(--ink);
  background: #fff;
}

.btn-ghost {
  border-color: var(--line);
  color: var(--teal-deep);
  padding: 0.55rem 1rem;
  font-size: 0.9rem;
  background: #fff;
}

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 2.5rem;
  padding: 4rem 5vw 4.5rem;
}

.brand-lockup {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  letter-spacing: -0.02em;
  color: var(--teal-deep);
  margin-bottom: 0.9rem;
  animation: fadeUp 0.65s ease both;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.05rem, 4.4vw, 3.4rem);
  line-height: 1.12;
  font-weight: 700;
  letter-spacing: -0.04em;
  margin-bottom: 1.1rem;
  color: var(--ink);
  animation: fadeUp 0.7s ease 0.06s both;
}

.hero-sub {
  color: var(--muted);
  max-width: 34rem;
  font-size: 1.08rem;
  margin-bottom: 1.7rem;
  animation: fadeUp 0.7s ease 0.12s both;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  animation: fadeUp 0.7s ease 0.18s both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.mind-plane {
  position: relative;
  width: min(460px, 90vw);
  aspect-ratio: 1.05;
  border-radius: 32px;
  background:
    radial-gradient(circle at 70% 28%, rgba(13, 148, 136, 0.16), transparent 42%),
    linear-gradient(165deg, #ffffff 0%, #e7f7f4 100%);
  border: 1px solid #bfe5df;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.orbit {
  position: absolute;
  border: 1px dashed rgba(15, 118, 110, 0.28);
  border-radius: 50%;
}

.orbit-a {
  inset: 14%;
  animation: spin 28s linear infinite;
}

.orbit-b {
  inset: 26%;
  animation: spin 18s linear infinite reverse;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.query {
  position: absolute;
  padding: 0.55rem 0.8rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 500;
  box-shadow: 0 6px 18px rgba(12, 26, 31, 0.06);
  animation: float 4.8s ease-in-out infinite;
}

.q1 { top: 18%; left: 10%; animation-delay: 0s; }
.q2 { top: 34%; right: 8%; animation-delay: 0.8s; }
.q3 { bottom: 28%; left: 14%; animation-delay: 1.4s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.sight {
  position: absolute;
  left: 50%;
  top: 52%;
  transform: translate(-50%, -50%);
  width: min(220px, 58%);
  padding: 1.15rem 1rem;
  border-radius: 18px;
  background: #0f766e;
  color: #fff;
  text-align: center;
  box-shadow: 0 16px 36px rgba(15, 118, 110, 0.35);
  animation: pulseSoft 3.2s ease-in-out infinite;
}

.sight-brand {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
}

.sight-meta {
  display: block;
  font-size: 0.72rem;
  opacity: 0.88;
}

@keyframes pulseSoft {
  0%, 100% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(1.03); }
}

.section {
  padding: 5rem 5vw;
  max-width: 1120px;
  margin: 0 auto;
}

.section-head {
  max-width: 40rem;
  margin-bottom: 2.4rem;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  letter-spacing: -0.03em;
  margin-bottom: 0.7rem;
  line-height: 1.2;
}

.section-head p { color: var(--muted); font-size: 1.05rem; }

.flow,
.scope-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}

.flow article,
.scope-grid > div {
  padding: 1.5rem 1.35rem 1.6rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 4px 20px rgba(12, 26, 31, 0.03);
}

.step {
  display: inline-block;
  font-family: var(--font-display);
  color: var(--teal);
  font-weight: 700;
  margin-bottom: 0.7rem;
}

.flow h3,
.scope-grid h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 0.55rem;
  letter-spacing: -0.02em;
}

.flow p,
.scope-grid p { color: var(--muted); font-size: 0.95rem; }

.section-kpi {
  max-width: none;
  margin: 0;
  padding-left: 5vw;
  padding-right: 5vw;
  background: linear-gradient(180deg, transparent, rgba(204, 251, 241, 0.45), transparent);
}

.section-kpi .section-head,
.section-kpi .metric-list,
.section-kpi .fineprint {
  max-width: 1120px;
  margin-left: auto;
  margin-right: auto;
}

.metric-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.85rem;
}

.metric-list li {
  padding: 1.05rem 1.15rem;
  border-left: 3px solid var(--teal);
  background: #fff;
  border-radius: 0 14px 14px 0;
  font-weight: 600;
  box-shadow: 0 4px 18px rgba(12, 26, 31, 0.04);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.fineprint {
  margin-top: 1.4rem;
  color: var(--muted);
  font-size: 0.85rem;
  max-width: 48rem;
}

.cta-band {
  text-align: center;
  border: 1px solid #bfe5df;
  border-radius: 28px;
  background:
    radial-gradient(ellipse at top, rgba(13, 148, 136, 0.14), transparent 55%),
    #fff;
  margin-bottom: 3rem;
  box-shadow: var(--shadow);
}

.cta-band h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.8vw, 2rem);
  margin-bottom: 0.6rem;
  letter-spacing: -0.03em;
}

.cta-band p {
  color: var(--muted);
  margin-bottom: 1.3rem;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  padding: 1.4rem 5vw 2rem;
  color: var(--muted);
  font-size: 0.88rem;
  border-top: 1px solid var(--line);
  background: var(--bg-soft);
}

.site-footer a {
  color: var(--teal-deep);
  text-decoration: none;
  font-weight: 600;
}

@media (max-width: 900px) {
  .nav { display: none; }
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 2.2rem;
  }
  .hero-visual { order: -1; }
  .mind-plane { width: min(340px, 88vw); }
  .flow,
  .metric-list,
  .scope-grid {
    grid-template-columns: 1fr;
  }
}