@charset "UTF-8";

/* ==========================================================================
   株式会社辰光 コーポレートサイト共通スタイル
   ========================================================================== */

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f4f5f6;
  --color-bg-dark: #1c2227;
  --color-bg-dark-alt: #262e35;
  --color-text: #2a2e33;
  --color-text-light: #5c636b;
  --color-text-invert: #f3f4f5;
  --color-border: #e1e3e6;
  --color-primary: #1c2227;
  --color-accent: #d96a2b;
  --color-accent-dark: #b8551f;
  --color-accent-tint: #fbece1;
  --font-base: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", "Meiryo", system-ui, -apple-system, sans-serif;
  --container-width: 1100px;
  --radius: 6px;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { padding-left: 1.4em; }

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
}
.skip-link:focus {
  left: 8px;
  top: 8px;
  background: var(--color-accent);
  color: #fff;
  padding: 6px 12px;
  border-radius: var(--radius);
  z-index: 1000;
}

/* ----- ヘッダー ----- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  max-width: var(--container-width);
  margin: 0 auto;
  gap: 16px;
}
.logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.logo span { color: var(--color-accent); }
.header-contact {
  display: none;
  text-align: right;
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.5;
}
.header-contact .tel {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
}
.header-contact .tel::before { content: "TEL "; font-size: 0.7rem; font-weight: 400; }

.nav-toggle {
  border: none;
  background: none;
  width: 40px;
  height: 40px;
  position: relative;
  cursor: pointer;
}
.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  content: "";
  position: absolute;
  left: 8px;
  right: 8px;
  height: 2px;
  background: var(--color-primary);
  transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle::before { top: 12px; }
.nav-toggle span { top: 19px; }
.nav-toggle::after { top: 26px; }
.nav-toggle[aria-expanded="true"]::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"]::after { transform: translateY(-7px) rotate(-45deg); }
.nav-toggle[aria-expanded="true"] span { opacity: 0; }

.main-nav {
  display: none;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
}
.main-nav.is-open { display: block; }
.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 8px 20px 16px;
}
.main-nav li + li { border-top: 1px solid var(--color-border); }
.main-nav a {
  display: block;
  padding: 12px 4px;
  color: var(--color-primary);
  font-weight: 600;
}
.main-nav a:hover { color: var(--color-accent-dark); text-decoration: none; }

@media (min-width: 860px) {
  .header-contact { display: block; }
  .nav-toggle { display: none; }
  .main-nav { display: block; border-top: none; }
  .main-nav ul { display: flex; gap: 4px; padding: 0; }
  .main-nav li + li { border-top: none; }
  .main-nav a { padding: 8px 14px; border-radius: var(--radius); font-size: 0.95rem; }
  .main-nav a:hover { background: var(--color-bg-alt); }
  .site-header__inner { flex-wrap: wrap; }
}

/* ----- ヒーロー (トップページ) ----- */
.hero {
  position: relative;
  color: #fff;
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, #3a2a22 100%);
  overflow: hidden;
}
.hero__inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 64px 20px;
  display: grid;
  gap: 32px;
  position: relative;
  z-index: 2;
}
.hero__eyebrow {
  display: inline-block;
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  margin-bottom: 10px;
}
.hero h1 {
  font-size: 1.9rem;
  line-height: 1.5;
  margin: 0 0 16px;
}
.hero p { color: #d8dadd; max-width: 38em; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.hero__photos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.hero__photos img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  object-fit: cover;
  width: 100%;
  height: 100%;
}
@media (min-width: 860px) {
  .hero__inner { grid-template-columns: 1.1fr 0.9fr; align-items: center; }
  .hero h1 { font-size: 2.4rem; }
}

/* ----- ページタイトル (下層ページ) ----- */
.page-title {
  background: var(--color-bg-dark);
  color: #fff;
  padding: 40px 0;
}
.page-title .container > .breadcrumb { margin-bottom: 10px; }
.page-title h1 {
  margin: 0;
  font-size: 1.6rem;
}
.page-title .en {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 6px;
}

.breadcrumb {
  font-size: 0.8rem;
  color: #b7bcc1;
}
.breadcrumb a { color: #b7bcc1; }
.breadcrumb a:hover { color: #fff; }

/* ----- セクション共通 ----- */
.section { padding: 56px 0; }
.section--alt { background: var(--color-bg-alt); }
.section__head { text-align: center; max-width: 640px; margin: 0 auto 36px; }
.section__eyebrow {
  display: block;
  color: var(--color-accent-dark);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}
.section__head h2 { margin: 0 0 10px; font-size: 1.5rem; }
.section__head p { color: var(--color-text-light); margin: 0; }

main h2.block-title {
  font-size: 1.3rem;
  border-left: 5px solid var(--color-accent);
  padding-left: 12px;
  margin: 40px 0 18px;
}
main h3.sub-title {
  font-size: 1.1rem;
  margin: 28px 0 12px;
  color: var(--color-primary);
}
main > .container > p.lead {
  font-size: 1.05rem;
  color: var(--color-text-light);
}

/* ----- カードグリッド ----- */
.grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) { .grid--2 { grid-template-columns: 1fr 1fr; } }
@media (min-width: 860px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.card h3 { margin-top: 0; }

.product-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-bg);
  box-shadow: var(--shadow);
  transition: transform .15s ease;
}
.product-card:hover { transform: translateY(-3px); }
.product-card img { aspect-ratio: 4/3; object-fit: cover; width: 100%; background: #eee; }
.product-card__body { padding: 18px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.product-card__body h3 { margin: 0; font-size: 1.05rem; }
.product-card__body p { margin: 0; color: var(--color-text-light); font-size: 0.92rem; flex: 1; }
.product-card__link {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-accent-dark);
}

.feature-card { text-align: center; }
.feature-card__num {
  display: inline-flex;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-accent-tint);
  color: var(--color-accent-dark);
  font-weight: 700;
  margin-bottom: 14px;
}

/* ----- ボタン ----- */
.btn {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
}
.btn:hover { text-decoration: none; }
.btn--primary { background: var(--color-accent); color: #fff; }
.btn--primary:hover { background: var(--color-accent-dark); }
.btn--outline { background: transparent; border-color: #fff; color: #fff; }
.btn--outline:hover { background: rgba(255,255,255,0.12); }
.btn--dark { background: var(--color-primary); color: #fff; }
.btn--dark:hover { background: #000; }

/* ----- ギャラリー ----- */
.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  list-style: none;
  padding: 0;
  margin: 24px 0;
}
@media (min-width: 640px) { .gallery { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 860px) { .gallery { grid-template-columns: repeat(4, 1fr); } }
.gallery li {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
}
.gallery img { aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.gallery figcaption, .gallery p {
  margin: 0;
  padding: 8px;
  font-size: 0.82rem;
  color: var(--color-text-light);
}

/* ----- テーブル ----- */
.table-wrap { overflow-x: auto; margin: 20px 0; }
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  min-width: 480px;
}
table.data caption {
  text-align: left;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-primary);
}
table.data th, table.data td {
  border: 1px solid var(--color-border);
  padding: 8px 10px;
  text-align: left;
}
table.data th { background: var(--color-bg-alt); }
table.data td.cent, table.data th.cent { text-align: center; }

dl.info-list { display: grid; grid-template-columns: 1fr; gap: 0; margin: 20px 0; }
dl.info-list > div { display: grid; grid-template-columns: 9em 1fr; border-bottom: 1px solid var(--color-border); padding: 12px 0; gap: 12px; }
dl.info-list dt { font-weight: 700; color: var(--color-text-light); margin: 0; }
dl.info-list dd { margin: 0; }

/* ----- 沿革 ----- */
.history { list-style: none; padding: 0; margin: 20px 0; border-left: 2px solid var(--color-border); }
.history li { position: relative; padding: 0 0 22px 24px; }
.history li::before {
  content: "";
  position: absolute;
  left: -6px; top: 4px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
}
.history time { display: block; font-weight: 700; color: var(--color-primary); font-size: 0.9rem; }

/* ----- お知らせ ----- */
.news-list { list-style: none; padding: 0; margin: 0; }
.news-list li {
  display: flex;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
}
.news-list time { color: var(--color-text-light); font-size: 0.88rem; min-width: 7em; }

/* ----- FAQ アコーディオン ----- */
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  background: var(--color-bg);
}
.faq-item summary {
  cursor: pointer;
  padding: 16px 44px 16px 18px;
  font-weight: 700;
  list-style: none;
  position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.3rem;
  color: var(--color-accent-dark);
}
.faq-item[open] summary::after { content: "−"; }
.faq-item__body { padding: 0 18px 18px; color: var(--color-text-light); }
.faq-item__body p:first-child { margin-top: 0; }

/* ----- お問い合わせフォーム ----- */
.contact-block { display: grid; gap: 32px; }
@media (min-width: 860px) { .contact-block { grid-template-columns: 1fr 1.2fr; } }

.field { margin-bottom: 20px; }
.field label { display: block; font-weight: 700; margin-bottom: 6px; font-size: 0.95rem; }
.field .req { color: var(--color-accent-dark); font-size: 0.78rem; margin-left: 4px; }
.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-tint);
}
.field--hp { position: absolute; left: -9999px; top: -9999px; }

.alert {
  padding: 14px 18px;
  border-radius: var(--radius);
  margin-bottom: 24px;
  font-weight: 600;
}
.alert--error { background: #fdeceb; color: #9a2f1f; border: 1px solid #f3c4bd; }
.alert--success { background: #eaf6ec; color: #1f6b34; border: 1px solid #bfe3c6; }

/* ----- 注意書き / TODOコメント表示用 ----- */
.note {
  background: #fff8ec;
  border: 1px solid #f0d9ab;
  border-radius: var(--radius);
  padding: 14px 16px;
  font-size: 0.88rem;
  color: #6b5210;
  margin: 16px 0;
}

/* ----- ステップ (ord.html) ----- */
.steps { list-style: none; padding: 0; margin: 30px 0; display: grid; gap: 16px; }
@media (min-width: 760px) { .steps { grid-template-columns: repeat(5, 1fr); } }
.steps li {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 18px 14px;
  text-align: center;
  position: relative;
}
.steps li .step-num {
  display: inline-flex;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-bottom: 10px;
}

/* ----- CTA ----- */
.cta {
  background: var(--color-bg-dark);
  color: #fff;
  text-align: center;
  padding: 48px 20px;
  border-radius: var(--radius);
}
.cta h2 { margin: 0 0 10px; }
.cta p { color: #cfd2d6; margin-bottom: 22px; }

/* ----- 地図 ----- */
.map-frame {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.map-frame iframe { width: 100%; height: 360px; border: 0; display: block; }

/* ----- フッター ----- */
.site-footer { background: var(--color-bg-dark); color: #c9ccd0; margin-top: 40px; }
.site-footer__inner {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 48px 20px 24px;
  display: grid;
  gap: 28px;
}
@media (min-width: 760px) { .site-footer__inner { grid-template-columns: 1.2fr 1fr 1fr; } }
.site-footer h3 { color: #fff; font-size: 0.95rem; margin: 0 0 12px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: #c9ccd0; }
.site-footer a:hover { color: #fff; }
.site-footer__bottom {
  border-top: 1px solid #343c43;
  text-align: center;
  font-size: 0.8rem;
  padding: 18px 20px;
  color: #8a8f95;
}

/* ----- back to top ----- */
.pagetop { text-align: center; margin: 36px 0 0; }
.pagetop a { font-size: 0.85rem; color: var(--color-text-light); }

/* ----- ユーティリティ ----- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }