@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700;900&family=Oswald:wght@400;600;700&display=swap');

:root {
  --green: #2eaa4a;
  --green-dark: #1a7a32;
  --green-light: #e8f5ec;
  --black: #111111;
  --gray-dark: #333333;
  --gray: #666666;
  --gray-light: #f5f5f5;
  --white: #ffffff;
  --akicari: #cc0000;
  --signdo: #e6a800;
  --soraie: #0077cc;
  --karaie: #3d2b1f;
}

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

html {
  overflow-x: hidden;
}
body {
  overflow-x: hidden;
  width: 100%;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--gray-dark);
  background: var(--white);
  line-height: 1.8;
  overflow-x: hidden;
}

/* ===== HEADER ===== */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(8px);
  border-bottom: 3px solid var(--green);
  padding: 0 40px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.header-logo img {
  height: 44px;
  width: auto;
}

.header-logo-text {
  display: flex;
  flex-direction: column;
}

.header-logo-text .en {
  font-family: 'Oswald', sans-serif;
  font-size: 13px;
  color: var(--green);
  letter-spacing: 0.08em;
  line-height: 1;
}

.header-logo-text .ja {
  font-size: 11px;
  color: var(--gray);
  letter-spacing: 0.05em;
  line-height: 1.3;
}

nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

nav a {
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-dark);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: 4px;
  transition: all 0.2s;
  letter-spacing: 0.04em;
}

nav a:hover {
  color: var(--green);
  background: var(--green-light);
}

nav a.cta {
  background: var(--green);
  color: white;
  padding: 8px 18px;
  border-radius: 4px;
  font-weight: 700;
}

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

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

.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--gray-dark);
  transition: all 0.3s;
}

/* ===== PAGE HERO ===== */
.page-hero {
  margin-top: 70px;
  background: linear-gradient(135deg, var(--black) 0%, #1a3a22 100%);
  padding: 70px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 60% 40%, rgba(46,170,74,0.15) 0%, transparent 60%);
  pointer-events: none;
}

.page-hero h1 {
  font-family: 'Oswald', sans-serif;
  font-size: clamp(28px, 5vw, 48px);
  color: white;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}

.page-hero p {
  color: rgba(255,255,255,0.7);
  font-size: 14px;
  letter-spacing: 0.1em;
}

/* ===== SECTION ===== */
section {
  padding: 80px 40px;
}

section:not(.hero) {
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-family: 'Oswald', sans-serif;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--green);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section-title {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  color: var(--black);
  margin-bottom: 16px;
  line-height: 1.4;
}

.section-title span {
  color: var(--green);
}

.section-divider {
  width: 48px;
  height: 4px;
  background: var(--green);
  margin-bottom: 40px;
}

/* ===== FOOTER ===== */
footer {
  background: var(--black);
  color: rgba(255,255,255,0.7);
  padding: 60px 40px 30px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 30px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-logo img {
  height: 40px;
}

.footer-logo-text {
  font-family: 'Oswald', sans-serif;
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.08em;
}

.footer-info p {
  font-size: 13px;
  line-height: 2;
}

.footer-nav h4 {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--green);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer-nav a {
  display: block;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  margin-bottom: 8px;
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: var(--green);
}

.footer-bottom {
  text-align: center;
  font-size: 12px;
  color: rgba(255,255,255,0.3);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 14px 36px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.06em;
  text-decoration: none;
  transition: all 0.25s;
  cursor: pointer;
  border: none;
}

.btn-green {
  background: var(--green);
  color: white;
}

.btn-green:hover {
  background: var(--green-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(46,170,74,0.35);
}

.btn-outline {
  border: 2px solid var(--green);
  color: var(--green);
  background: transparent;
}

.btn-outline:hover {
  background: var(--green);
  color: white;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  header {
    padding: 0 20px;
  }

  nav {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 20px;
    border-bottom: 3px solid var(--green);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    gap: 4px;
  }

  nav.open {
    display: flex;
  }

  nav a {
    width: 100%;
    text-align: center;
    padding: 12px;
  }

  .hamburger {
    display: flex;
  }

  section:not(.hero) {
    padding: 60px 20px;
  }

  .page-hero {
    padding: 50px 20px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}