@charset "UTF-8";

/* =========================================
   変数定義 (Design Tokens)
========================================= */
:root {
  /* Colors */
  --color-primary: #2e7d56;
  --color-primary-light: #4caf78;
  --color-primary-dark: #1b4d34;
  --color-bg-base: #fbfdfc;
  --color-bg-soft: #eff5f2;
  --color-text-main: #1f332a;
  --color-text-sub: #546e61;
  --color-white: #ffffff;
  
  /* Spacing & Layout */
  --header-height: 70px;
  --container-width: 1080px;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 999px;
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(31, 51, 42, 0.08);
  --shadow-md: 0 8px 24px rgba(31, 51, 42, 0.12);
  --shadow-lg: 0 16px 40px rgba(31, 51, 42, 0.16);
  
  /* Fonts */
  --font-base: "Noto Sans JP", -apple-system, BlinkMacSystemFont, sans-serif;
}

/* =========================================
   基本設定
========================================= */
html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-text-main);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  background-color: var(--color-bg-base);
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: all 0.2s;
}

a:hover {
  opacity: 0.9;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ユーティリティ */
.u-hidden-sp {
  display: inline;
}

/* =========================================
   ヘッダー
========================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(251, 253, 252, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(46, 125, 86, 0.1);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.site-logo__main {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary-dark);
}

.site-nav__list {
  display: flex;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-main);
  position: relative;
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-link--current {
  color: var(--color-primary-dark);
  font-weight: 700;
}

.nav-link--current::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-primary);
}

/* メインCTAナビボタン */
.nav-contact-btn {
  background-color: var(--color-primary);
  color: var(--color-white) !important;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: 0 4px 10px rgba(46, 125, 86, 0.2);
}

.nav-contact-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 14px rgba(46, 125, 86, 0.3);
}

/* ドロップダウンナビ（サービス内容・ご利用の流れ） */
.nav-item--has-children {
  position: relative;
}

.nav-link--dropdown {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font: inherit;
  color: var(--color-text-main);
}

.nav-link--dropdown:hover {
  color: var(--color-primary);
}

.nav-link__caret {
  width: 10px;
  height: 10px;
  display: inline-block;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.nav-item--has-children.is-open .nav-link__caret {
  transform: rotate(-135deg);
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 260px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  list-style: none;
  margin: 0;
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s ease;
  z-index: 1100;
}

.nav-item--has-children.is-open .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown__link {
  display: block;
  padding: 8px 16px;
  font-size: 0.9rem;
  color: var(--color-text-main);
  white-space: nowrap;
}

.nav-dropdown__link:hover {
  background: #e8f5ed;
  color: var(--color-primary-dark);
}

/* ハンバーガー */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 44px;
  height: 44px;
  padding: 8px;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}

.nav-toggle__bar {
  width: 24px;
  height: 2px;
  background-color: var(--color-text-main);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* =========================================
   ヒーロー（横いっぱい背景・白枠なし）
========================================= */
.hero {
  position: relative;
  padding: 96px 0 96px;
  overflow: hidden;
  color: var(--color-text-main);
}

.hero-visual {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.6;
  border-radius: 0;
  box-shadow: none;
}

.hero-visual__leaf {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 20%, rgba(200, 230, 210, 0.5) 0%, transparent 60%),
    radial-gradient(circle at 80% 90%, rgba(150, 200, 170, 0.4) 0%, transparent 75%);
  mix-blend-mode: soft-light;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(251, 253, 252, 0.7), rgba(239, 245, 242, 0.45));
  z-index: 1;
}

.hero-inner {
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 900px;
  margin: 0;
  text-align: left;
  padding-top: 16px;
}

.hero-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: 16px;
  display: inline-block;
  padding: 4px 12px;
  background-color: rgba(232, 245, 237, 0.9);
  border-radius: var(--radius-full);
}

.hero-title {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  line-height: 1.7;
  margin: 0 0 24px;
  color: var(--color-text-main);
  letter-spacing: 0.03em;
}

.hero-subtitle {
  color: var(--color-text-sub);
  margin-bottom: 32px;
  font-size: 0.98rem;
}

.hero-actions {
  display: flex;
  justify-content: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}

/* 共通ボタン */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background: #e8f5ed;
}

/* =========================================
   セクション・グリッド
========================================= */
.section {
  padding: 80px 0;
}

.section--soft-green {
  background-color: var(--color-bg-soft);
  background-image: none;
}

.section-title {
  text-align: center;
  font-size: 1.75rem;
  color: var(--color-primary-dark);
  margin-bottom: 12px;
}

.section-lead {
  text-align: center;
  color: var(--color-text-sub);
  margin: 0 0 48px;
  font-size: 0.95rem;
}

.section-inner--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.section-cta__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.section-cta__text {
  flex: 1 1 280px;
}

.section-cta__title {
  font-size: 1.4rem;
  margin: 0 0 12px;
  color: var(--color-primary-dark);
  text-align: left;
}

.section-cta__body {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-sub);
  text-align: left;
}

.section-cta__buttons {
  flex: 0 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}

/* =========================================
   お知らせ
========================================= */
.news-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.news-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  padding: 16px 20px;
  border-radius: var(--radius-md);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.news-date {
  flex-shrink: 0;
  font-size: 0.85rem;
  color: var(--color-text-sub);
}

.news-title {
  margin: 0;
  font-size: 0.95rem;
}

/* =========================================
   掲示板・公開資料
========================================= */
.bulletin-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.bulletin-item {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  border-left: 4px solid transparent;
  transition: border-color 0.2s;
}

.bulletin-item:hover {
  border-left-color: var(--color-primary);
}

.bulletin-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.bulletin-year {
  font-size: 0.85rem;
  color: var(--color-text-sub);
}

.badge {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
  background: #eee;
  font-weight: 700;
}

.badge--report {
  background: #e8f5e9;
  color: #2e7d32;
}

.bulletin-title {
  flex: 1;
  font-size: 1rem;
  margin: 0;
  min-width: 200px;
}

.btn-link {
  font-size: 0.85rem;
  color: var(--color-primary);
  text-decoration: underline;
}

.section-note {
  font-size: 0.8rem;
  color: var(--color-text-sub);
  margin-top: 24px;
  text-align: center;
}

/* =========================================
   フッター
========================================= */
.site-footer {
  background: var(--color-primary-dark);
  color: #e0e8e4;
  padding: 60px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-heading {
  color: var(--color-white);
  font-size: 1rem;
  margin: 0 0 16px;
}

.footer-nav {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-nav li {
  margin-bottom: 8px;
}

.footer-nav a {
  color: #e0e8e4;
}

.footer-nav a:hover {
  color: var(--color-white);
  text-decoration: underline;
}

.btn-footer {
  display: inline-block;
  background: rgba(255,255,255,0.1);
  color: #fff;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  margin-top: 12px;
}

.btn-footer:hover {
  background: rgba(255,255,255,0.2);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 0.8rem;
  color: #a0b0a8;
}

/* =========================================
   固定CTA
========================================= */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: var(--color-white);
  padding: 12px 16px;
  box-shadow: 0 -4px 16px rgba(0,0,0,0.1);
  z-index: 900;
  display: none;
  gap: 8px;
  align-items: center;
}

.sticky-cta__btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 12px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.9rem;
}

.sticky-cta__btn--primary {
  background: var(--color-primary);
  color: #fff;
}

.sticky-cta__btn--secondary {
  background: #f2f5f3;
  color: var(--color-text-main);
}

.sticky-cta__icon {
  margin-right: 4px;
}

/* PC用フローティングCTA */
.floating-cta {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 850;
  display: none;
}

.floating-cta__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 26px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: var(--shadow-md);
}

.floating-cta__btn:hover {
  background: var(--color-primary-dark);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

/* =========================================
   アニメーション
========================================= */
.js-fadein {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.js-fadein.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================
   レスポンシブ
========================================= */
@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

  .hero {
    padding: 72px 0 72px;
  }

  /* スマホは左右いっぱいに近い感じで表示 */
  .hero-inner {
    padding: 0 16px;
  }

  .hero-content {
    max-width: none;
    margin: 0;
    padding-top: 12px;
  }

  .hero-title {
    font-size: 1.5rem;
  }

  .hero-actions {
    justify-content: flex-start;
  }

  .section {
    padding: 60px 0;
  }

  .section-cta__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .section-cta__title,
  .section-cta__body {
    text-align: left;
  }

  .section-cta__buttons {
    width: 100%;
    justify-content: flex-start;
  }

  .u-hidden-sp {
    display: none;
  }

  /* ナビゲーションSP対応 */
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: var(--color-bg-base);
    padding: 32px 24px;
    transform: translateX(100%);
    transition: transform 0.3s;
    overflow-y: auto;
  }

  .site-nav.is-open {
    transform: translateX(0);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }

  .nav-item--has-children {
    width: 100%;
  }

  .nav-link--dropdown {
    width: 100%;
    justify-content: space-between;
  }

  .nav-dropdown {
    position: static;
    box-shadow: none;
    margin-top: 8px;
    padding-left: 12px;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
  }

  .nav-item--has-children.is-open .nav-dropdown {
    display: block;
  }

  .nav-contact-btn {
    width: 100%;
    text-align: center;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .sticky-cta {
    display: flex;
  }

  .floating-cta {
    display: none;
  }

  .site-footer {
    padding-bottom: 96px; /* 固定CTA分の余白 */
  }
}

@media (min-width: 769px) {
  .floating-cta {
    display: block;
  }
}