/* さわだ眼科 リニューアル メインスタイルシート (Vanilla CSS) */

:root {
  --primary-color: #1e88e5;        /* 現サイトを踏襲した爽やかなライトブルー */
  --primary-light: #eef7ff;        /* 淡く清潔感のあるライトブルー背景 */
  --primary-dark: #1565c0;         /* 視認性の高い濃いめのライトブルー */
  --accent-color: #e67e22;         /* 温かみのあるオレンジアクセント */
  --accent-light: #fdf2e9;
  --text-main: #333333;
  --text-sub: #666666;
  --bg-gray: #f8fafc;
  --border-color: #e2e8f0;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.08);
  --font-sans: 'M PLUS Rounded 1c', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--text-main);
  background-color: #ffffff;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  opacity: 0.85;
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

/* ==========================================================================
   共通SVGアイコンスタイル (Clean Inline SVG)
   ========================================================================== */
.svg-icon {
  width: 1.2em;
  height: 1.2em;
  vertical-align: -0.2em;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  display: inline-block;
}

.svg-icon-lg {
  width: 1.8em;
  height: 1.8em;
  vertical-align: -0.3em;
}

/* ==========================================================================
   スマホ優先バー (Mobile First Quick Access Bar)
   ========================================================================== */
.mobile-top-bar {
  display: flex;
  background: var(--primary-light);
  border-bottom: 2px solid var(--primary-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.mobile-top-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 4px;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--primary-dark);
  text-align: center;
  border-right: 1px solid rgba(30, 136, 229, 0.2);
}

.mobile-top-btn:last-child {
  border-right: none;
}

.mobile-top-btn.btn-tel {
  background: var(--accent-color);
  color: #ffffff;
}

.mobile-top-btn.btn-insta {
  flex: 0 0 auto;
  padding: 12px 16px;
  color: var(--text-sub);
}

.mobile-top-btn.btn-insta .svg-icon {
  width: 22px;
  height: 22px;
}

@media (min-width: 769px) {
  .mobile-top-bar {
    display: none;
  }
}

/* ==========================================================================
   ヘッダー (Header)
   ========================================================================== */
.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
}

.header-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 15px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.site-logo-mark {
  height: 52px;
  width: auto;
  border-radius: 12px;
  flex-shrink: 0;
}

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

.site-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  letter-spacing: 0.08em;
  margin: 0;
  line-height: 1.2;
}

.site-subtitle {
  font-size: 0.78rem;
  color: var(--text-sub);
}

.header-info-pc {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-tel-box {
  text-align: right;
}

.header-tel-label {
  font-size: 0.75rem;
  color: var(--text-sub);
}

.header-tel-number {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--primary-dark);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.header-quick-btns {
  display: flex;
  gap: 10px;
}

.btn-header {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.9rem;
}

.btn-header-hours {
  background: var(--primary-light);
  color: var(--primary-dark);
  border: 1px solid var(--primary-color);
}

.btn-header-access {
  background: var(--primary-color);
  color: #ffffff;
}

.btn-header-insta {
  background: transparent;
  color: var(--text-sub);
  padding: 8px;
}

.btn-header-insta:hover {
  color: var(--primary-color);
}

.btn-header-insta .svg-icon {
  width: 26px;
  height: 26px;
}

/* SPのみ：ヘッダー右端のInstagramアイコン（JSで自動挿入） */
.insta-header-sp {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--text-sub);
  flex-shrink: 0;
}

.insta-header-sp .svg-icon {
  width: 28px;
  height: 28px;
}

@media (max-width: 768px) {
  .header-info-pc {
    display: none;
  }
  .header-inner {
    padding: 12px 15px;
  }
  .insta-header-sp {
    display: flex;
  }
}

/* ==========================================================================
   グローバルナビゲーション (Navigation)
   ========================================================================== */
.global-nav {
  background: var(--primary-dark);
}

.nav-inner {
  max-width: 1140px;
  margin: 0 auto;
}

.nav-list {
  display: flex;
  list-style: none;
}

.nav-item {
  flex: 1;
  text-align: center;
}

.nav-link {
  display: block;
  padding: 14px 10px;
  color: #ffffff;
  font-weight: 500;
  font-size: 0.95rem;
  transition: background 0.2s ease;
}

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

/* ハンバーガーボタン＋SPドロップダウンメニュー（PCでは非表示） */
.nav-toggle,
.sp-nav-dropdown {
  display: none;
}

@media (max-width: 768px) {
  /* グローバルナビは横スクロールバーとして常時表示 */
  .global-nav {
    overflow-x: auto;
    white-space: nowrap;
  }
  .nav-list {
    display: inline-flex;
    width: 100%;
  }
  .nav-link {
    padding: 12px 14px;
    font-size: 0.88rem;
  }

  /* クイックバー右端のハンバーガーボタン */
  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    padding: 12px 16px;
    background: none;
    border: none;
    cursor: pointer;
  }
  .nav-toggle-bars {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 22px;
  }
  .nav-toggle-bars span {
    display: block;
    height: 2px;
    background: var(--primary-dark);
    border-radius: 1px;
    transition: transform 0.2s ease, opacity 0.2s ease;
  }
  .nav-toggle.nav-open .nav-toggle-bars span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }
  .nav-toggle.nav-open .nav-toggle-bars span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle.nav-open .nav-toggle-bars span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  /* ☰で開く縦メニュー（画面上のクイックバー直下に固定表示） */
  .sp-nav-dropdown {
    position: fixed;
    left: 0;
    right: 0;
    z-index: 999;
    background: var(--primary-dark);
    border-bottom: 2px solid var(--primary-color);
    box-shadow: var(--shadow-md);
    max-height: 70vh;
    overflow-y: auto;
  }
  .sp-nav-dropdown.nav-open {
    display: block;
  }
  .sp-nav-dropdown a {
    display: block;
    padding: 13px 20px;
    color: #ffffff;
    font-weight: 500;
    font-size: 0.95rem;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
  }
  .sp-nav-dropdown a.active {
    background: var(--primary-color);
  }
}

/* ==========================================================================
   ヒーローセクション (Hero Section - 全幅フル背景画像ライトブルーグラデーション)
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 480px;
  display: flex;
  align-items: center;
  /* ヒーロー画像：PC=ekimae2.jpg / SP=ekimae2_sp.jpg（元は mv.jpg に戻せます） */
  background: url('../images/ekimae2.jpg') center/cover no-repeat;
  color: #ffffff;
  padding: 60px 20px;
}

.hero-inner {
  max-width: 1140px;
  margin: 0 auto;
  width: 100%;
}

.hero-text-box {
  max-width: 540px;
  margin-left: auto;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 35px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.hero-text-badge {
  display: inline-block;
  background: var(--accent-color);
  color: #ffffff;
  padding: 5px 16px;
  border-radius: var(--radius-lg);
  font-size: 0.88rem;
  font-weight: 700;
  margin-bottom: 15px;
  box-shadow: var(--shadow-sm);
}

.hero-title {
  font-size: 2.3rem;
  line-height: 1.35;
  color: #ffffff;
  margin-bottom: 20px;
  font-weight: 700;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.hero-desc {
  font-size: 1.05rem;
  color: #f0f7ff;
  line-height: 1.8;
  margin-bottom: 0;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

@media (max-width: 768px) {
  .hero-section {
    min-height: 0;
    aspect-ratio: 1106 / 641;
    padding: 0;
    background: url('../images/ekimae2_sp.jpg') center/contain no-repeat;
  }
  .hero-text-box {
    margin-left: 0;
    padding: 18px 16px;
    background: rgba(13, 71, 161, 0.5);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
  }
  .hero-text-badge {
    padding: 4px 12px;
    font-size: 0.75rem;
    margin-bottom: 8px;
  }
  .hero-title {
    font-size: 1.35rem;
    margin-bottom: 8px;
  }
  .hero-desc {
    font-size: 0.85rem;
    line-height: 1.6;
  }
}

/* ==========================================================================
   セクション共通設定 (Sections)
   ========================================================================== */
.section {
  padding: 60px 20px;
}

.section-bg-gray {
  background-color: var(--bg-gray);
}

.container {
  max-width: 1140px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-title {
  font-size: 1.8rem;
  color: var(--primary-dark);
  display: inline-block;
  position: relative;
  padding-bottom: 10px;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 50px;
  height: 3px;
  background: var(--primary-color);
  border-radius: 2px;
}

.section-subtitle {
  font-size: 0.9rem;
  color: var(--text-sub);
  margin-top: 8px;
}

/* ==========================================================================
   診療時間 & アクセス Card (Information Grid)
   ========================================================================== */
.info-summary-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 30px;
}

.info-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.info-card-title {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 2px solid var(--primary-light);
  padding-bottom: 10px;
}

/* 診療時間テーブル */
.table-schedule {
  width: 100%;
  border-collapse: collapse;
  text-align: center;
  font-size: 0.92rem;
  margin-bottom: 15px;
}

.table-schedule th, .table-schedule td {
  border: 1px solid var(--border-color);
  padding: 10px 4px;
}

.table-schedule th {
  background: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 700;
}

.schedule-note {
  font-size: 0.85rem;
  color: var(--text-sub);
  line-height: 1.6;
}

/* 土曜午前の強調マーク（赤太丸） */
.sat-mark {
  color: #d53f3f;
  font-weight: 900;
  font-size: 1.3em;
  line-height: 1;
}

/* 商品一覧テーブル */
.table-items .item-name {
  text-align: left;
  padding-left: 15px;
}

.table-items .item-price {
  width: 130px;
  font-weight: 700;
  color: var(--primary-dark);
}

@media (max-width: 768px) {
  .info-summary-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .info-card {
    padding: 20px 15px;
  }
}

/* ==========================================================================
   お知らせ (News Section)
   ========================================================================== */
.news-list {
  list-style: none;
}

.news-item {
  border-bottom: 1px dashed var(--border-color);
  padding: 15px 0;
  display: flex;
  gap: 15px;
  align-items: baseline;
}

.news-item:last-child {
  border-bottom: none;
}

.news-date {
  font-size: 0.88rem;
  color: var(--text-sub);
  white-space: nowrap;
}

.news-badge {
  font-size: 0.75rem;
  padding: 2px 10px;
  border-radius: var(--radius-lg);
  font-weight: 700;
  white-space: nowrap;
}

.news-badge-info {
  background: var(--primary-light);
  color: var(--primary-dark);
}

.news-badge-kyushin {
  background: #fee2e2;
  color: #991b1b;
}

.news-title {
  font-size: 0.95rem;
  color: var(--text-main);
  flex: 1;
}

.news-attachment {
  font-size: 0.82rem;
  color: var(--primary-color);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: 10px;
}

@media (max-width: 600px) {
  .news-item {
    flex-direction: column;
    gap: 6px;
  }
}

/* ==========================================================================
   診療メニュー Card Grid (Features / Images)
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 25px;
}

.service-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.service-image-box {
  width: 100%;
  height: 170px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 15px;
  background: var(--primary-light);
  position: relative;
}

.service-image-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}

.service-card:hover .service-image-box img {
  transform: scale(1.04);
}

.service-title {
  font-size: 1.15rem;
  color: var(--primary-dark);
  margin-bottom: 10px;
}

.service-desc {
  font-size: 0.9rem;
  color: var(--text-sub);
  margin-bottom: 15px;
  flex: 1;
}

.service-link {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--primary-color);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ページ内リンク用：stickyバーの下に隠れないようスクロール余白を確保 */
[id^="aisatu"] {
  scroll-margin-top: 90px;
}

/* ==========================================================================
   トピックス・キャンペーン グリッド (2x4カードボタン)
   ========================================================================== */
.topics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.topic-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--primary-color);
  border-radius: var(--radius-sm);
  padding: 18px 16px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-left-color 0.2s ease;
}

.topic-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-left-color: var(--accent-color);
}

.topic-card-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--primary-dark);
}

.topic-card-title .svg-icon {
  width: 16px;
  height: 16px;
  color: var(--primary-color);
  flex-shrink: 0;
}

.topic-card-desc {
  font-size: 0.82rem;
  color: var(--text-sub);
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 768px) {
  .topics-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .topic-card {
    padding: 14px 12px;
  }
  .topic-card-title {
    font-size: 0.88rem;
  }
  .topic-card-desc {
    font-size: 0.75rem;
  }
}

/* ==========================================================================
   ページトップへ戻るボタン (Floating Pagetop Button)
   ========================================================================== */
.pagetop-btn {
  position: fixed;
  bottom: 25px;
  right: 25px;
  width: 48px;
  height: 48px;
  background: var(--primary-color);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(15px);
  transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s ease;
}

.pagetop-btn.is-active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.pagetop-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
  opacity: 1;
}

.pagetop-btn .svg-icon {
  width: 22px;
  height: 22px;
  stroke-width: 2.5;
}

@media (max-width: 768px) {
  .pagetop-btn {
    bottom: 20px;
    right: 15px;
    width: 44px;
    height: 44px;
  }
}

/* ==========================================================================
   フッター (Footer)
   ========================================================================== */
.site-footer {
  background: #2d3748;
  color: #e2e8f0;
  padding: 50px 20px 20px;
}

.footer-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-title {
  color: #ffffff;
  font-size: 1.3rem;
  margin-bottom: 10px;
}

.footer-address {
  font-size: 0.9rem;
  line-height: 1.8;
  color: #cbd5e0;
}

.footer-copyright {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid #4a5568;
  font-size: 0.82rem;
  color: #a0aec0;
}

@media (max-width: 768px) {
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 25px;
  }
}