/* ========================================
   何某工務店 — 共通スタイル
   白ベース + 濃紺アクセント / スマホファースト
   ======================================== */

:root {
  --color-primary: #0a2342;
  --color-primary-hover: #143a5c;
  --color-accent: #c9a227;
  --color-text: #333333;
  --color-text-muted: #666666;
  --color-bg: #ffffff;
  --color-bg-alt: #f7f8fa;
  --color-border: #e2e6ea;
  --radius: 4px;
  --shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.12);
  --font-sans: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", Meiryo, sans-serif;
  --header-height: 72px;
  --section-padding-y: 5rem;
  --section-padding-x: 1.25rem;
  --max-width: 1120px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg);
}

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

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

a:hover {
  color: var(--color-primary-hover);
}

ul {
  list-style: none;
}

/* ---- ユーティリティ ---- */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding-left: var(--section-padding-x);
  padding-right: var(--section-padding-x);
}

.section {
  padding: var(--section-padding-y) 0;
}

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

.section__title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}

.section__subtitle {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 3rem;
  font-size: 0.95rem;
}

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---- ボタン ---- */

.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

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

.btn--primary:hover {
  background-color: var(--color-primary-hover);
  color: #fff;
  box-shadow: var(--shadow-hover);
  transform: translateY(-1px);
}

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

.btn--outline:hover {
  background-color: var(--color-primary);
  color: #fff;
}

/* ---- ヘッダー ---- */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.97);
  box-shadow: var(--shadow);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--section-padding-x);
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.08em;
}

.logo span {
  display: block;
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: 0.15em;
}

.nav {
  display: none;
}

.nav__list {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.nav__link {
  position: relative;
  display: inline-block;
  padding: 0.5rem 0.875rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  border-radius: var(--radius);
  transition:
    color 0.2s ease,
    background-color 0.2s ease;
}

/* ホバー時：背景ハイライト + 下線スライドイン */
.nav__link::after {
  content: "";
  position: absolute;
  left: 0.875rem;
  right: 0.875rem;
  bottom: 0.35rem;
  height: 2px;
  background-color: var(--color-primary);
  border-radius: 1px;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.25s ease;
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--color-primary);
  background-color: rgba(10, 35, 66, 0.08);
}

.nav__link:hover::after,
.nav__link:focus-visible::after {
  transform: scaleX(1);
}

/* ハンバーガー */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary);
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle.is-active .menu-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-active .menu-toggle__bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-active .menu-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  background-color: var(--color-bg);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
}

.mobile-nav.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-nav__link {
  display: block;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  border-left: 3px solid transparent;
  border-radius: 0 var(--radius) var(--radius) 0;
  transition:
    color 0.2s ease,
    background-color 0.2s ease,
    border-left-color 0.2s ease;
}

.mobile-nav__link:hover,
.mobile-nav__link:focus-visible,
.mobile-nav__link:active {
  color: var(--color-primary);
  background-color: rgba(10, 35, 66, 0.06);
  border-left-color: var(--color-primary);
}

/* ---- ヒーロー ---- */

.hero {
  position: relative;
  min-height: 85vh;
  margin-top: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  animation: heroFadeIn 1.4s ease forwards;
}

@keyframes heroFadeIn {
  to {
    opacity: 1;
  }
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10, 35, 66, 0.55) 0%,
    rgba(10, 35, 66, 0.75) 100%
  );
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem var(--section-padding-x);
  max-width: 720px;
  color: #fff;
  opacity: 0;
  animation: heroContentFade 1s ease 0.5s forwards;
}

@keyframes heroContentFade {
  to {
    opacity: 1;
  }
}

.hero__title {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 1rem;
  letter-spacing: 0.06em;
}

.hero__subtitle {
  font-size: 1rem;
  margin-bottom: 2rem;
  opacity: 0.92;
  line-height: 1.8;
}

.hero .btn--primary {
  background-color: #fff;
  color: var(--color-primary);
}

.hero .btn--primary:hover {
  background-color: var(--color-bg-alt);
  color: var(--color-primary-hover);
}

/* ---- 事業内容 ---- */

.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.service-card {
  background: var(--color-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: box-shadow var(--transition), transform var(--transition);
}

.service-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.service-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.25rem;
  color: var(--color-primary);
}

.service-card__icon svg {
  width: 100%;
  height: 100%;
}

.service-card__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.service-card__text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ---- 施工実績（横スクロール） ---- */

.works__scroll {
  display: flex;
  gap: 1.25rem;
  overflow-x: auto;
  padding-bottom: 1rem;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) var(--color-bg-alt);
}

.works__scroll::-webkit-scrollbar {
  height: 6px;
}

.works__scroll::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 3px;
}

.work-card {
  flex: 0 0 280px;
  scroll-snap-align: start;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--color-bg);
}

.work-card__image {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.work-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.work-card:hover .work-card__image img {
  transform: scale(1.05);
}

.work-card__body {
  padding: 1rem 1.25rem;
}

.work-card__category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-bg-alt);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius);
  margin-bottom: 0.5rem;
}

.work-card__title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
}

.works__more {
  text-align: center;
  margin-top: 2.5rem;
}

/* ---- 選ばれる理由 ---- */

.reasons__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.reason-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2rem 1.5rem;
}

.reason-card__icon {
  width: 56px;
  height: 56px;
  margin-bottom: 1.25rem;
  color: var(--color-accent);
}

.reason-card__icon svg {
  width: 100%;
  height: 100%;
}

.reason-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.reason-card__text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ---- 会社概要（表） ---- */

.company-table {
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  border-collapse: collapse;
  background: var(--color-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.company-table th,
.company-table td {
  padding: 1rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
}

.company-table th {
  width: 35%;
  background-color: var(--color-bg-alt);
  font-weight: 600;
  color: var(--color-primary);
  vertical-align: top;
}

.company-table tr:last-child th,
.company-table tr:last-child td {
  border-bottom: none;
}

/* ---- アクセス ---- */

.access__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.access__map {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 16 / 10;
}

.access__map iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.access__info {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.access__info p {
  margin-bottom: 0.75rem;
}

.access__info strong {
  color: var(--color-primary);
}

/* ---- フッター ---- */

.footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.85);
  padding: 3rem 0 1.5rem;
}

.footer a {
  color: rgba(255, 255, 255, 0.85);
}

.footer a:hover {
  color: #fff;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer__logo {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.5rem;
}

.footer__address {
  font-size: 0.85rem;
  line-height: 1.8;
}

.footer__nav-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 0.75rem;
  letter-spacing: 0.1em;
}

.footer__nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer__nav-link {
  font-size: 0.9rem;
}

.footer__copy {
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

/* ---- お問い合わせページ ---- */

.page-hero {
  margin-top: var(--header-height);
  padding: 3.5rem 0 2.5rem;
  background-color: var(--color-bg-alt);
  text-align: center;
}

.page-hero__title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.page-hero__subtitle {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

/* フォーム */
.contact-form {
  background: var(--color-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem 1.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.form-group label .required {
  color: #c0392b;
  font-size: 0.75rem;
  margin-left: 0.25rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(10, 35, 66, 0.1);
}

.form-group textarea {
  min-height: 160px;
  resize: vertical;
}

.form-submit {
  text-align: center;
  margin-top: 0.5rem;
}

.form-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 1rem;
}

/* 送信成功（デモ） */
.contact-success {
  background: var(--color-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 3rem 1.5rem;
  text-align: center;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.contact-success.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.contact-success__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.5rem;
  color: var(--color-primary);
}

.contact-success__icon svg {
  width: 100%;
  height: 100%;
}

.contact-success__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.contact-success__message {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  line-height: 1.8;
}

.contact-success__demo {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  background-color: rgba(10, 35, 66, 0.06);
  border: 1px solid rgba(10, 35, 66, 0.15);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 2rem;
  line-height: 1.8;
}

/* FAQ */
.faq__list {
  max-width: 720px;
  margin: 0 auto;
}

.faq__item {
  border-bottom: 1px solid var(--color-border);
  padding: 1.25rem 0;
}

.faq__item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq__question {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.faq__answer {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* 簡易アクセス */
.contact-access {
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
}

.contact-access__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1.25rem;
}

.contact-access__item {
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.contact-access__item dt {
  font-weight: 600;
  color: var(--color-primary);
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
}

.contact-access__item dd {
  color: var(--color-text-muted);
}

/* ---- タブレット以上 ---- */

@media (min-width: 768px) {
  :root {
    --section-padding-y: 6rem;
    --section-padding-x: 2rem;
  }

  .section__title {
    font-size: 2rem;
  }

  .hero__title {
    font-size: 2.5rem;
  }

  .hero__subtitle {
    font-size: 1.15rem;
  }

  .services__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }

  .reasons__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }

  .work-card {
    flex: 0 0 320px;
  }

  .access__grid {
    grid-template-columns: 1.2fr 1fr;
    align-items: start;
  }

  .footer__grid {
    grid-template-columns: 1.5fr 1fr;
  }

  .footer__nav-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1.5rem;
  }

  .contact-form {
    padding: 2.5rem;
  }

  .page-hero__title {
    font-size: 2.25rem;
  }
}

@media (min-width: 1024px) {
  .menu-toggle {
    display: none;
  }

  .nav {
    display: block;
  }

  .mobile-nav {
    display: none;
  }

  .hero {
    min-height: 90vh;
  }

  .contact-layout {
    grid-template-columns: 1.5fr 1fr;
    align-items: start;
  }
}