/* =====================================
   IRIE LIFE - Common Styles
   ===================================== */

/* ── COMMON STYLES — IRIE LIFE ── */
@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Noto+Sans+JP:wght@300;400;500;700&family=DM+Sans:ital,wght@0,300;0,400;0,500;1,300&display=swap');

:root {
  --teal:       #3a9a96;
  --teal-dark:  #2a7a76;
  --teal-light: #5bbfbb;
  --teal-pale:  #e8f5f5;
  --white:      #ffffff;
  --off-white:  #f7f8f8;
  --gray-100:   #f0f2f2;
  --gray-200:   #e0e4e4;
  --gray-400:   #9aabab;
  --gray-500:   #6a8080;
  --gray-700:   #2e3e3e;
  --black:      #0e1616;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--black);
  background: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 40px;
  padding: 20px 64px;
  background: rgba(255,255,255,0.98);
  box-shadow: 0 1px 0 rgba(0,0,0,0.07);
  transition: padding 0.4s, box-shadow 0.4s;
}

nav.scrolled {
  padding: 16px 64px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.08);
}

nav.dark-nav {
  background: rgba(14,22,22,0.97);
  padding: 18px 64px;
  box-shadow: 0 1px 0 rgba(255,255,255,0.05);
}

.nav-logo {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  margin-right: auto;
}

.nav-logo-img {
  height: 64px;
  width: auto;
  display: block;
  object-fit: contain;
  /* 元画像の黒をそのまま使用 */
}

.nav-logo-sub {
  font-family: 'DM Sans', sans-serif;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--gray-400);
  text-transform: uppercase;
  margin-top: 4px;
}

nav.dark-nav .nav-logo-main { color: var(--white); }

nav.dark-nav .nav-logo-sub  { color: rgba(255,255,255,0.4); }

.nav-links {
  display: flex;
  gap: 40px;
  list-style: none;
  align-items: center;
}

.nav-links a {
  font-family: 'DM Sans', sans-serif;
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.12em;
  color: var(--gray-700);
  text-decoration: none;
  text-transform: uppercase;
  transition: color 0.3s;
  position: relative;
  padding-bottom: 4px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: currentColor;
  transition: width 0.3s;
}

.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

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

nav.dark-nav .nav-links a { color: rgba(255,255,255,0.7); }

nav.dark-nav .nav-links a:hover { color: var(--teal-light); }

.nav-cta {
  font-family: 'DM Sans', sans-serif;
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal-dark);
  border: 1px solid var(--teal);
  padding: 10px 24px;
  text-decoration: none;
  transition: all 0.3s;
}

.nav-cta:hover {
  background: var(--teal);
  color: var(--white);
}

nav.dark-nav .nav-cta {
  color: var(--teal-light);
  border-color: var(--teal);
}

nav.dark-nav .nav-cta:hover {
  background: var(--teal);
  color: var(--white);
}

/* ── SECTION LABEL ── */
.sec-label {
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.25em;
  color: var(--teal);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.sec-label::before {
  content: '';
  display: block;
  width: 24px; height: 1px;
  background: var(--teal);
}

.sec-label.light { color: rgba(91,191,187,0.9); }

.sec-label.light::before { background: rgba(91,191,187,0.9); }

/* ── REVEAL ── */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible { opacity: 1; transform: translateY(0); }

.d1 { transition-delay: 0.1s; }

.d2 { transition-delay: 0.2s; }

.d3 { transition-delay: 0.3s; }

.d4 { transition-delay: 0.4s; }

/* ── FOOTER ── */
.site-footer {
  background: var(--black);
  padding: 64px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}

.footer-logo-wrap .footer-logo-main {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 22px;
  letter-spacing: 0.14em;
  color: var(--white);
  line-height: 1;
}

.footer-logo-wrap .footer-logo-sub {
  font-family: 'DM Sans', sans-serif;
  font-size: 8px;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.35);
  text-transform: uppercase;
  margin-top: 4px;
}

.footer-nav-list {
  display: flex;
  gap: 32px;
  list-style: none;
}

.footer-nav-list a {
  font-family: 'DM Sans', sans-serif;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: rgba(255,255,255,0.4);
  text-decoration: none;
  text-transform: uppercase;
  transition: color 0.3s;
}

.footer-nav-list a:hover { color: var(--teal-light); }

.footer-contact-wrap {
  text-align: right;
}

.footer-contact-wrap a {
  font-family: 'DM Sans', sans-serif;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--teal-light);
  text-decoration: none;
  text-transform: uppercase;
  border-bottom: 1px solid var(--teal);
  padding-bottom: 2px;
  transition: color 0.3s;
}

.footer-contact-wrap a:hover { color: var(--white); }

.footer-bottom {
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-address {
  font-size: 11px;
  font-weight: 300;
  line-height: 1.7;
  color: rgba(255,255,255,0.3);
}

.footer-copy {
  font-family: 'DM Sans', sans-serif;
  font-size: 10px;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.2);
}

/* ── HAMBURGER ── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 24px; height: 1px;
  background: var(--white);
  transition: background 0.3s;
}

nav.scrolled .hamburger span { background: var(--gray-700); }