:root {
  --teal: #00A9B5;
  --teal-dark: #007f8a;
  --teal-light: #d4f0f4;
  --teal-pale: #eaf7f9;
  --navy: #1a3a4c;
  --text: #2c4a5a;
  --muted: #6b8a9a;
  --border: #cfe8ed;
  --bg: #f4fafc;
  --bg2: #e6f4f7;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', sans-serif;
  color: var(--text); background: var(--bg); overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }

/* NAV */
nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.875rem 3rem;
  border-bottom: 0.5px solid var(--border);
  position: sticky; top: 0; background: rgba(244,250,252,0.96);
  backdrop-filter: blur(8px); z-index: 100;
}
.logo { font-size: 16px; font-weight: 600; letter-spacing: 0.06em; }
.logo span { color: var(--teal); }
.nav-links { display: flex; align-items: center; gap: 1.5rem; }
.nav-links a { font-size: 13px; color: var(--muted); transition: color 0.2s; }
.nav-links a:hover { color: var(--teal); }
.nav-cta {
  font-size: 13px; padding: 0.5rem 1.4rem;
  border: 1.5px solid var(--teal); color: var(--teal);
  border-radius: 6px; font-weight: 500; transition: all 0.2s;
}
.nav-cta:hover { background: var(--teal); color: #fff; }
.nav-cta.filled { background: var(--teal); color: #fff; }
.nav-cta.filled:hover { background: var(--teal-dark); }
.nav-cta.line-filled { background: #06C755; border-color: #06C755; color: #fff; }
.nav-cta.line-filled:hover { background: #05a847; }

/* HAMBURGER */
.hamburger-btn {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px; margin-left: 4px;
}
.hamburger-btn span { display: block; width: 22px; height: 2px; background: var(--navy); border-radius: 2px; }

/* MOBILE NAV */
.mobile-nav {
  display: none; position: fixed; inset: 0;
  background: rgba(26,58,76,0.15);
  z-index: 200; align-items: flex-start; justify-content: flex-end;
  padding: 4.25rem 1.25rem 0 0;
}
.mobile-nav.open { display: flex; }
.mobile-nav-panel {
  background: #fff; border-radius: 14px; padding: 1rem 1.25rem 1.25rem;
  box-shadow: 0 10px 36px rgba(0,60,80,0.2);
  display: flex; flex-direction: column; align-items: stretch; gap: 0.75rem;
  min-width: 168px;
}
.mobile-nav-link { font-size: 14px; font-weight: 600; color: var(--navy); transition: color 0.2s; padding: 0.15rem 0; }
.mobile-nav-link:hover { color: var(--teal); }
.mobile-nav-close {
  position: static; align-self: flex-end; margin-bottom: 0.15rem;
  background: none; border: none; cursor: pointer; font-size: 18px; color: var(--muted);
  display: flex; align-items: center; justify-content: center;
}
.mobile-line-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: #06C755; color: #fff !important;
  padding: 0.65rem 1.25rem; border-radius: 9px;
  font-size: 13px; font-weight: 600; margin-top: 0.15rem;
  transition: background 0.2s;
}
.mobile-line-btn:hover { background: #05a847; }

/* SECTIONS */
section { padding: 5rem; border-bottom: 0.5px solid var(--border); }
.section-inner { max-width: 960px; margin: 0 auto; }
.section-label { font-size: 11px; color: var(--teal); letter-spacing: 0.12em; font-weight: 600; margin-bottom: 0.6rem; }
.section-title { font-size: clamp(20px, 2vw, 26px); font-weight: 600; margin-bottom: 0.5rem; color: var(--navy); }
.section-desc { font-size: 14px; color: var(--muted); line-height: 1.8; margin-bottom: 2.5rem; }

/* PAGE HERO (sub pages) */
.page-hero {
  padding: 3.5rem 5rem 3rem;
  background: var(--bg2);
  border-bottom: 0.5px solid var(--border);
}
.page-hero .section-inner { max-width: 960px; }
.breadcrumb {
  font-size: 12px; color: var(--muted); margin-bottom: 1rem;
  display: flex; align-items: center; gap: 6px;
}
.breadcrumb a { color: var(--teal); }
.breadcrumb a:hover { text-decoration: underline; }
.page-title {
  font-size: clamp(24px, 3vw, 36px); font-weight: 700; color: var(--navy); line-height: 1.3;
}
.page-title em { color: var(--teal); font-style: normal; }

/* WAVE */
.wave-divider { line-height: 0; overflow: hidden; }
.wave-divider svg { display: block; width: 100%; }

/* CTA BTN */
.cta-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 0.9rem 2rem; background: var(--teal); color: #fff;
  border-radius: 8px; font-size: 15px; font-weight: 500;
  border: none; cursor: pointer; transition: background 0.2s, transform 0.15s;
}
.cta-btn:hover { background: var(--teal-dark); transform: translateY(-2px); }
.cta-btn.line-btn { background: #06C755; }
.cta-btn.line-btn:hover { background: #05a847; }

/* FOOTER */
footer {
  padding: 2rem 3rem; text-align: center;
  font-size: 12px; color: #aaa; background: var(--bg2);
}
footer .footer-links {
  display: flex; gap: 24px; justify-content: center; margin-bottom: 0.75rem; flex-wrap: wrap;
}
footer .footer-links a { color: #aaa; font-size: 13px; transition: color 0.2s; }
footer .footer-links a:hover { color: var(--teal); }

/* ANIMATIONS */
section[id] { scroll-margin-top: 70px; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }

/* MOBILE */
@media (max-width: 768px) {
  nav { padding: 0.75rem 1rem; }
  .nav-links { display: none; }
  .nav-cta { font-size: 11px; padding: 0.4rem 0.75rem; }
  .hamburger-btn { display: flex; }
  .logo { font-size: 14px; }
  section { padding: 2.5rem 1.25rem; }
  .section-title { font-size: 18px; }
  .page-hero { padding: 2rem 1.25rem; }
}