@import url("https://fonts.googleapis.com/css2?family=BIZ+UDPGothic:wght@400;500;600;700&display=swap");

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

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  width: 100%;
}

body {
  display: flex;
  flex-direction: column;
  width: 100%;
  min-height: 100vh;
  line-height: 1.65;
  font-family: "BIZ UDPGothic", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  color: var(--text);
  background: #fff;
  overflow-wrap: break-word;
}

ul,
ol {
  list-style: none;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

a {
  text-decoration: underline;
  color: var(--green-dark);
  &:hover {
    text-decoration: none;
  }
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid var(--green-light);
  outline-offset: 2px;
}

/* GLightbox: .gcontainer が overflow:hidden のためアウトラインが欠ける。閉じる含む .gbtn は内側リングでフォーカスを確保 */
.glightbox-container .gbtn:focus-visible,
.glightbox-container .gbtn.focused {
  outline: none;
  box-shadow: inset 0 0 0 3px var(--green-light), inset 0 0 0 6px rgba(255, 255, 255, 0.45);
}

:root {
  --green-main: #2C7A56;
  --green-dark: #1A4331;
  --green-light: #4A9E6F;
  --green-pale: #E8F5E9;
  --cream: #F7F7F5;
  --beige: #E8E2D8;
  --border-subtle: #E0DDD6;
  --text-dark: #000000;
  --text-body: #000000;
  --text-muted: #000000;
  --text: var(--text-dark);
  --line: var(--border-subtle);
  --surface: #fff;
  --radius: 12px;
  --radius-m: 8px;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  --container: 1280px;
  --header-pad-x: clamp(1rem, 5vw, 2rem);
  --header-height: 80px;
  --hero-sub-height: 280px;
  --section-pad-y: 100px;
  --section-pad-x: 80px;
}

body > a[href="#main-content"] {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 1000;
  background: #111;
  color: #fff;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;

  &:focus {
    top: 1rem;
  }
}

.container,
body > footer {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  box-sizing: border-box;
}

/* 全幅の帯＋内側は .container で本文と同じ幅に揃える */
header {
  width: 100%;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  box-sizing: border-box;
}

header > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-height);
  padding: 0 var(--header-pad-x);
  box-sizing: border-box;

  & > a {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    color: var(--text);
    flex-shrink: 0;

    /* max-width に % を使うと shrink-to-fit の a と循環し幅 0 になることがあるため数値のみ */
    & img {
      display: block;
      max-width: 160px;
      height: 52px;
      width: auto;
      object-fit: contain;
      object-position: left center;
      flex-shrink: 0;
    }
  }

  & > a + nav {
    display: flex;
    align-items: center;
    gap: 2rem;
    min-width: 0;
    flex: 1;
    justify-content: flex-end;
    margin: 0;
  }

  /* デスクトップ: メニュー | 区切り | 電話 | ハンバーガー */
  & #main-nav-menu {
    order: 1;
  }

  & #main-nav-menu + span {
    order: 2;
    width: 1px;
    height: 28px;
    background: var(--border-subtle);
    flex-shrink: 0;
  }

  & a[href^="tel:"] {
    order: 3;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--green-main);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    font-size: clamp(0.8125rem, 1.5vw, 0.875rem);
    letter-spacing: 0.02em;
    border-radius: 6px;
    transition: background 0.2s;

    &:hover {
      background: var(--green-dark);
    }

    & svg {
      width: 16px;
      height: 16px;
      flex-shrink: 0;
    }
  }

  & button[aria-controls="main-nav-menu"] {
    order: 4;
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 48px;
    height: 48px;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
    color: var(--text);
    border-radius: 6px;
    transition: background 0.2s;

    &:hover {
      background: var(--line);
    }

    &:focus-visible {
      outline: 2px solid var(--green-light);
      outline-offset: 2px;
    }

    & > span {
      display: flex;
      flex-direction: column;
      justify-content: center;
      gap: 5px;
      width: 28px;
    }

    & > span > span {
      display: block;
      width: 100%;
      height: 2px;
      background: var(--green-dark);
      border-radius: 1px;
      transition: transform 0.25s, opacity 0.25s;
    }

    &[aria-expanded="true"] > span > span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    &[aria-expanded="true"] > span > span:nth-child(2) {
      opacity: 0;
    }

    &[aria-expanded="true"] > span > span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }
  }

  & nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
  }

  & nav a {
    display: block;
    text-decoration: none;
    color: var(--text-body);
    font-size: clamp(0.9375rem, 1.5vw, 1rem);
    font-weight: 500;
    letter-spacing: 0.06em;
    padding: 0.35rem 0;
    width: fit-content;
    max-width: 100%;
    transition: color 0.2s, box-shadow 0.2s;

    &[aria-current="page"] {
      color: var(--green-main);
      font-weight: 700;
    }

    /* 下線は border ではなく box-shadow（角丸と干渉しない・文字幅に合わせやすい） */
    @media (min-width: 1025px) {
      box-shadow: 0 2px 0 0 transparent;

      &:hover {
        box-shadow: 0 2px 0 0 var(--green-main);
      }

      &[aria-current="page"]:hover {
        box-shadow: 0 2px 0 0 transparent;
      }
    }
  }

  & h1 {
    margin: 0;
    font-size: 0;
    line-height: 0;
    display: flex;
    align-items: center;

    & img {
      display: block;
    }
  }
}

main {
  flex: 1;
  background: #fff;
}

main.page-about > h1:first-child,
main.page-cases > h1:first-child,
main.page-contact > h1:first-child {
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3rem clamp(1rem, 5vw, 5rem);
  color: #fff;
  background-size: cover;
  background-position: center;
  margin: 0;
  font-size: clamp(2rem, 4vw, 2.75rem);
  letter-spacing: 0.05em;
  line-height: 1.25;
}

main.page-about > h1:first-child {
  background-image: linear-gradient(rgba(0, 0, 0, 0.45), rgba(0, 0, 0, 0.45)), url("images/company.webp");
}

main.page-cases > h1:first-child {
  background-image: linear-gradient(rgba(0, 0, 0, 0.45), rgba(0, 0, 0, 0.45)), url("images/cases.webp");
}

main.page-contact > h1:first-child {
  background-image: linear-gradient(rgba(0, 0, 0, 0.45), rgba(0, 0, 0, 0.45)), url("images/contact.webp");
}

/* 送信完了ページ */
.form-head p.form-head-desc {
  color: var(--text-dark) !important;
  font-size: 16px;
  line-height: 1.8;
}

.thanks-result-box .thanks-phone {
  margin: 0.5rem 0 0;
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 700;
}

.thanks-result-box .thanks-phone a,
.cream .access-section address a[href^="tel"] {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--green-main);
  text-decoration: underline;
}

.thanks-result-box .thanks-phone a svg,
.cream .access-section address a[href^="tel"] svg {
  flex-shrink: 0;
}

.thanks-result-box .thanks-phone a:hover {
  text-decoration: none;
}

.hero-page {
  min-height: 280px;
  display: flex;
  align-items: center;
  padding: 3rem clamp(1rem, 6vw, 5rem);
  color: #fff;
  background-size: cover;
  background-position: center;
  position: relative;

  &::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
  }

  & > * {
    position: relative;
    z-index: 1;
  }

  & h2 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 2.75rem);
    letter-spacing: 0.05em;
    line-height: 1.25;
  }
}

.hero-home {
  min-height: 800px;
  display: flex;
  align-items: center;
  padding: 0 clamp(1rem, 6vw, 5rem);
  color: #fff;
  background-image: url("images/hero.webp");
  background-size: cover;
  background-position: center;
  position: relative;

  &::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, #00000088 0%, #00000033 100%);
  }

  & > * {
    position: relative;
    z-index: 1;
  }

  & .container {
    max-width: 980px;
  }

  & h2 {
    margin: 0;
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 700;
    line-height: 1.3;
  }

  & p {
    margin: 1rem 0 0;
    color: #fff;
    font-size: clamp(1rem, 2vw, 1.125rem);
    font-weight: 500;
    line-height: 1.8;
  }

  & .hero-actions {
    list-style: none;
    margin: 1.5rem 0 0;
    padding: 0;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
  }
}

.hero-btn {
  min-height: 64px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  border-radius: 6px;
  font-size: clamp(0.9rem, 2vw, 0.95rem);
  text-decoration: none;
  border: 0;
  background: #fff;
  color: var(--green-dark);
  font-weight: 700;
  transition: background 0.2s, color 0.2s;

  &:hover {
    background: var(--green-dark);
    color: #fff;
  }

  & .hero-btn-arrow {
    display: inline-block;
    transition: transform 0.25s ease;
  }

  &:hover .hero-btn-arrow,
  &:focus-visible .hero-btn-arrow {
    transform: translateX(0.55em);
  }

  &.hero-btn-insta {
    background: linear-gradient(90deg, #f58529 0%, #dd2a7b 50%, #8134af 100%);
    color: #fff;

    &:hover {
      background: #fff;
      color: #dd2a7b;
    }

    & strong {
      display: block;
      font-size: 17px;
      line-height: 1.2;
    }
  }
}

.surface {
  background: var(--surface);

  & p {
    margin: 0;
    color: var(--text-muted);
  }
}

.cream {
  background: var(--cream);

  & .access-section h2 {
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--green-main);
  }

  & address {
    font-style: normal;

    & p {
      margin: 0;
      color: var(--text-muted);

      &:first-of-type {
        margin-top: 0.5rem;
        font-size: clamp(1rem, 2vw, 1.125rem);
        color: var(--text-dark);
      }
    }
  }
}

.green-cta {
  background: var(--green-dark);
  color: #fff;

  &.cta-inner {
    text-align: center;

    & p {
      margin: 0 0 1.5rem;
      color: #fff;
    }
  }
}

.section-pad {
  padding: clamp(3rem, 7vw, var(--section-pad-y)) clamp(1rem, 6vw, var(--section-pad-x));
}

section h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.3;
}

address {
  font-style: normal;
}

.more-link {
  margin: 0;
  text-align: center;
}

.btn-more {
  padding: 14px 32px;
  font-size: clamp(0.8125rem, 1.5vw, 0.875rem);
  font-weight: 600;
}

.cases-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 48px;

  & h2 {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    letter-spacing: 0.05em;
  }

  & .grid-3,
  & .cases-list {
    width: 100%;
  }

  & .notice + .cases-list {
    margin-top: -48px;
  }
}

.cases-list,
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;

  & > li {
    display: flex;
    min-height: 0;
  }

  & .case-card {
    width: 100%;
    min-width: 0;
  }
}

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

.cta-actions {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-cta-outline {
  color: #fff;
  border-color: #fff;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4rem;
}

.message-section .grid-2 {
  gap: 64px;
}

.message-photo {
  margin: 0;
  border-radius: 8px;
  overflow: hidden;
  background-color: var(--beige);
  background-image: url("images/message.webp");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  aspect-ratio: 480 / 360;
  min-height: 12rem;
}

.access-section {
  margin: 0;
}

main.page-about > section.surface:first-of-type .container > p:nth-of-type(3),
.message-text p {
  line-height: 2;
}

.message-text {
  padding-top: 16px;

  & h2 {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    letter-spacing: 0.05em;
    line-height: 1.5;
    margin: 0 0 1.75rem;
  }

  & p {
    font-size: clamp(0.9375rem, 1.5vw, 1rem);
    color: var(--text-body);
  }
}

.grid-3 {
  align-items: stretch;
}

.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  text-decoration: none;
  font-weight: 700;
  border-radius: 6px;
  padding: 0.85rem 1.4rem;
  border: 2px solid var(--green-main);
  cursor: pointer;

  &.primary {
    background: var(--green-main);
    color: #fff;
    transition: background 0.2s;

    &:hover {
      background: var(--green-dark);
    }
  }

  &.outline {
    background: transparent;
    color: var(--green-main);
  }

  /* トップ「施工事例をもっと見る」: ヒーローの白ボタンと同じホバー */
  &.outline.btn-more {
    transition: background 0.2s, color 0.2s, border-color 0.2s;

    & .hero-btn-arrow {
      display: inline-block;
      transition: transform 0.25s ease;
    }

    &:hover,
    &:focus-visible {
      background: var(--green-dark);
      color: #fff;
      border-color: var(--green-dark);
    }

    &:hover .hero-btn-arrow,
    &:focus-visible .hero-btn-arrow {
      transform: translateX(0.55em);
    }
  }
}

/* Cases page - Pencil design */
.cases-content {
  background: #fff;
}

.project-group {
  margin: 0;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.cases-notice {
  margin: 0;
  font-size: clamp(0.7rem, 1.5vw, 0.75rem);
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.4;
}

.project-group .cases-list .case-item.case-card-y {
  grid-column: 1 / -1;
}

.project-group .cases-list .case-item.case-card:not(.case-card-y):not(.case-card-single) {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 200px auto;
  gap: 2px;
  min-width: 0;
  height: auto;
  min-height: 400px;
  align-self: stretch;
}

.project-group .cases-list .case-item.case-card:not(.case-card-y):not(.case-card-single) > .case-body {
  grid-column: 1 / -1;
}

.project-group .cases-list .case-item.case-card.case-card-single {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 200px auto;
  gap: 2px;
  min-width: 0;
  height: auto;
  min-height: 400px;
  align-self: stretch;
}

.project-group .cases-list .case-item.case-card.case-card-single > .case-body {
  grid-column: 1 / -1;
}

.project-group .cases-list .case-item.case-card-y {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.case-card-y .project-images {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-rows: 200px auto;
  gap: 2px;
  row-gap: 16px;
  min-width: 0;
  width: 100%;
}

.case-card-y .project-images > figure {
  margin: 0;
  position: relative;
  overflow: hidden;
  border-radius: 0 4px 0 4px;
  min-width: 0;
}

.case-card-y .project-images > figure:first-of-type {
  border-radius: 8px 0 0 0;
}

.case-card-y .project-images > figure:nth-of-type(2) {
  border-radius: 0 8px 0 0;
}

.case-card-y .project-images > figure a {
  position: relative;
  display: block;
  height: 100%;
  overflow: hidden;
}

.case-card-y .project-images > figure img {
  position: relative;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.case-card-y .project-images > figure a::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0);
  transition: background 0.25s ease;
  pointer-events: none;
  z-index: 1;
}

.case-card-y .project-images > figure a:hover::after,
.case-card-y .project-images > figure a:focus-visible::after {
  background: rgba(0, 0, 0, 0.38);
}

.case-card-y .project-images > .project-card-label {
  grid-column: 1 / -1;
}

.project-card-label {
  margin: 0;
  font-size: clamp(0.8125rem, 1.5vw, 0.875rem);
  font-weight: 700;
  color: var(--text-dark);
  text-align: center;
}

.case-card-y .case-body {
  grid-column: 1 / -1;
}

.case-card {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
}

.case-card-y {
  height: auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* トップ: 施工事例は li 直下に figure×2 + .case-body */
body.page-home ul.cases-list > li.case-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 200px auto;
  gap: 2px;
  min-width: 0;
  min-height: 0;
  width: 100%;
  align-self: stretch;
}

body.page-home ul.cases-list > li.case-card > .case-body {
  grid-column: 1 / -1;
}

/* 施工事例ページ: li 直下の figure */
.project-group .cases-list .case-item.case-card:not(.case-card-y):not(.case-card-single) > figure,
.project-group .cases-list .case-item.case-card.case-card-single > figure,
body.page-home ul.cases-list > li.case-card > figure {
  margin: 0;
  position: relative;
  overflow: hidden;
}

.project-group .cases-list .case-item.case-card:not(.case-card-y):not(.case-card-single) > figure:first-of-type,
body.page-home ul.cases-list > li.case-card > figure:first-of-type {
  border-radius: 8px 0 0 0;
}

.project-group .cases-list .case-item.case-card:not(.case-card-y):not(.case-card-single) > figure:nth-of-type(2),
body.page-home ul.cases-list > li.case-card > figure:nth-of-type(2) {
  border-radius: 0 8px 0 0;
}

.project-group .cases-list .case-item.case-card.case-card-single > figure {
  border-radius: 8px 8px 0 0;
}

.project-group .cases-list .case-item.case-card:not(.case-card-y):not(.case-card-single) > figure a,
.project-group .cases-list .case-item.case-card.case-card-single > figure a,
body.page-home ul.cases-list > li.case-card > figure a {
  position: relative;
  display: block;
  overflow: hidden;
  height: 100%;
  text-decoration: none;
  color: inherit;
}

.project-group .cases-list .case-item.case-card:not(.case-card-y):not(.case-card-single) > figure img,
.project-group .cases-list .case-item.case-card.case-card-single > figure img,
body.page-home ul.cases-list > li.case-card > figure img {
  position: relative;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.project-group .cases-list .case-item.case-card:not(.case-card-y):not(.case-card-single) > figure a::after,
.project-group .cases-list .case-item.case-card.case-card-single > figure a::after,
body.page-home ul.cases-list > li.case-card > figure a::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0);
  transition: background 0.25s ease;
  pointer-events: none;
  z-index: 1;
}

.project-group .cases-list .case-item.case-card:not(.case-card-y):not(.case-card-single) > figure a:hover::after,
.project-group .cases-list .case-item.case-card:not(.case-card-y):not(.case-card-single) > figure a:focus-visible::after,
.project-group .cases-list .case-item.case-card.case-card-single > figure a:hover::after,
.project-group .cases-list .case-item.case-card.case-card-single > figure a:focus-visible::after,
body.page-home ul.cases-list > li.case-card > figure a:hover::after,
body.page-home ul.cases-list > li.case-card > figure a:focus-visible::after {
  background: rgba(0, 0, 0, 0.38);
}

.case-body {
  margin: 0;
  padding: 0.8rem 0.9rem;
  box-sizing: border-box;

  & h2,
  & h3 {
    margin: 0 0 0.4rem;
    font-size: clamp(0.9375rem, 1.5vw, 1rem);
    line-height: 1.4;
  }
}

.case-cat {
  font-size: clamp(0.6rem, 1.5vw, 0.6875rem);
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--green-main);
}

.case-meta {
  margin: 0;
  padding: 0;
  font-size: clamp(0.75rem, 1.5vw, 0.8125rem);
  color: var(--text-muted);
  line-height: 1.45;

  & dt {
    font-size: clamp(0.9375rem, 1.5vw, 1rem);
    font-weight: 600;
    color: var(--text-dark);
    margin: 0 0 0.25em;
  }

  & dd {
    margin: 0;

    & + dd {
      margin-top: 0.25em;
    }
    & a::after {
      content: "";
      display: inline-block;
      width: 10px;
      height: 10px;
      background: url("/images/outlink.svg") no-repeat left top;
      background-size: contain;
      vertical-align: middle;
    }
  }
}

/* 施工事例ページ: カード高さは画像行＋min-height で抑え、本文の行間は .case-body / .case-meta 既定 */
.project-group .cases-list .case-item.case-card:not(.case-card-y):not(.case-card-single),
.project-group .cases-list .case-item.case-card.case-card-single {
  grid-template-rows: 168px auto;
  min-height: 0;
}

.project-group .case-card-y .project-images {
  grid-template-rows: 168px auto;
}

.img-label {
  position: absolute;
  right: 0;
  top: 0;
  z-index: 2;
  font-size: clamp(0.875rem, 3vw, 1.125rem);
  font-weight: 700;
  padding: 15px;
  color: #fff;
  background: var(--green-main);
  border-radius: 0 0 0 4px;
}

@media (min-width: 769px) {
  .img-label {
    font-size: clamp(0.625rem, 0.95vw, 0.8125rem);
    padding: 4px 9px;
  }
}

.notice {
  margin: 0 0 15px;
  font-size: clamp(0.8125rem, 1.5vw, 0.875rem);
  font-weight: 700;
  text-align: left;
  align-self: flex-start;
}

.kpi-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;

  & li {
    display: flex;
    flex-direction: column;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 1rem;
  }

  & h3 {
    margin: 0 0 0.5rem;
    font-size: clamp(1rem, 2vw, 1.125rem);
    font-weight: 700;
  }
}

.promise-num {
  display: inline-block;
  margin-right: 0.25em;
  color: var(--green-light);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  line-height: 1;
  vertical-align: middle;
}

.promise-desc {
  margin: 0;
  color: var(--text-muted);
  font-size: clamp(0.9rem, 2vw, 0.95rem);
  line-height: 1.9;
}

.company-info-dl {
  display: grid;
  grid-template-columns: 200px 1fr;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.company-info-dl dt,
.company-info-dl dd {
  padding: 0.75rem;
  border-bottom: 1px solid var(--line);
  margin: 0;
}

.company-info-dl dt {
  background: var(--green-pale);
  color: var(--text-dark);
  font-weight: 600;
}

.company-info-dl dt:last-of-type,
.company-info-dl dd:last-of-type {
  border-bottom: none;
}

@media (max-width: 640px) {
  .company-info-dl {
    grid-template-columns: 1fr;
  }
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  clip-path: inset(50%);
}

.message .ceo-sign,
.surface .ceo-sign {
  margin-top: 2rem !important;
  text-align: right;
  font-size: clamp(1.25rem, 2.5vw, 1.375rem);
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--text-dark);
}

/* お問い合わせ: 帯は全幅、列幅は header > .container と同じ */
main.page-contact > section.section-pad {
  padding-inline: 0;
  padding-block: clamp(3rem, 7vw, var(--section-pad-y));
}

main.page-contact > section.section-pad > .container {
  padding-inline: var(--header-pad-x);
  box-sizing: border-box;
}

main.page-contact form {
  width: 100%;
  background: var(--cream);
  border-radius: 12px;
  padding: clamp(1.25rem, 3vw, 2.5rem);
  box-sizing: border-box;
}

main.page-contact form > p:first-of-type {
  margin: 0;
  font-size: clamp(0.875rem, 1.5vw, 0.9375rem);
  line-height: 1.75;
  color: var(--text-dark);
}

.field {
  display: grid;
  gap: 0.35rem;
  margin: 0;
}

.label-row {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;

  & label {
    margin-bottom: 0;
  }
}

.badge {
  display: inline-block;
  border-radius: 3px;
  background: #a80c0c;
  color: #fff;
  font-size: clamp(0.6875rem, 1.75vw, 0.8125rem);
  font-weight: 700;
  line-height: 1;
  padding: 0.2rem 0.35rem;
}

.map-placeholder {
  margin: 0;
  min-height: 360px;
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 16 / 9;

  & iframe {
    display: block;
    width: 100%;
    height: 100%;
    min-height: 360px;
  }
}

.form-result {
  display: block;
  padding: 1.5rem 2rem;
  border-radius: 8px;
  margin: 0 0 2rem;
  box-sizing: border-box;

  & h2 {
    margin: 0 0 0.75rem;
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  }

  & p {
    margin: 0;
    line-height: 1.8;
  }
}

.form-result-success {
  background: var(--green-pale);
  border: 1px solid var(--green-main);
  color: var(--green-dark);

  & h2 {
    color: var(--green-dark);
  }
}

.form-result.thanks-result-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.form-result-error {
  background: #fef2f2;
  border: 1px solid #b91c1c;
  color: #b91c1c;
}

.form-head {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 2.5rem;

  & h2 {
    margin: 0 0 0.75rem;
  }

  & p {
    margin: 0;
    color: var(--text-muted);
    font-size: clamp(0.8125rem, 1.5vw, 0.875rem);
  }
}

.form-grid {
  display: grid;
  gap: 1.5rem;
}

.form-grid .btn,
.btn.submit-btn {
  width: 100%;
  min-height: 56px;
  font-size: clamp(0.9375rem, 1.5vw, 1rem);
  font-weight: 700;
  gap: 0.5rem;
  border: none;
}


.phone-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  font-family: inherit;
  color: var(--green-dark);
  margin-top: 0.5rem;
}

label {
  display: block;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #b7b7b3;
  border-radius: 8px;
  padding: 0.7rem 0.75rem;
  font: inherit;
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--green-main);
  outline: none;
  box-shadow: 0 0 0 2px rgba(44, 122, 86, 0.2);
}

/* 未入力・入力エラー時は赤枠（:user-invalid は操作後に表示、was-validated は送信後に表示） */
input:user-invalid,
textarea:user-invalid,
select:user-invalid,
.form-grid.was-validated input:invalid,
.form-grid.was-validated textarea:invalid,
.form-grid.was-validated select:invalid,
.field.is-invalid input,
.field.is-invalid textarea,
.field.is-invalid select {
  border-color: #b91c1c;
  background-color: #fef2f2;
}

input:user-invalid:focus,
textarea:user-invalid:focus,
select:user-invalid:focus,
.form-grid.was-validated input:invalid:focus,
.form-grid.was-validated textarea:invalid:focus,
.form-grid.was-validated select:invalid:focus,
.field.is-invalid input:focus,
.field.is-invalid textarea:focus,
.field.is-invalid select:focus {
  border-color: #b91c1c;
  box-shadow: 0 0 0 2px rgba(185, 28, 28, 0.2);
}

/* 有効な入力時 */
.form-grid.was-validated input:valid:not(:placeholder-shown),
.form-grid.was-validated textarea:valid:not(:placeholder-shown) {
  border-color: var(--green-main);
}

.field-error {
  font-size: clamp(0.75rem, 1.5vw, 0.8125rem);
  color: #b91c1c;
  margin-top: 0.25rem;
}

.field.is-invalid .field-error {
  display: block;
}

textarea {
  min-height: 9rem;
  resize: vertical;
}

.required {
  color: #b91c1c;
  margin-left: 0.25rem;
}

.phone-panel {
  margin: 0 auto;
  width: 100%;
  max-width: 560px;
  text-align: center;
  background: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 2rem;
  box-sizing: border-box;
}

body > footer {
  background: #fff;
  border-top: 1px solid var(--line);
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: clamp(0.8125rem, 1.5vw, 0.875rem);
  padding-inline: var(--header-pad-x);
}

@media (max-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  /* ハンバーガー表示幅と同じブレークポイントで施工事例は1列 */
  .project-group .cases-list {
    grid-template-columns: 1fr;
  }

  .project-group .cases-list .case-item.case-card-y {
    grid-template-columns: 1fr;
  }

  /* タブレット幅：ビフォーアフター横並びのまま、枠を少し高く */
  body.page-home ul.cases-list > li.case-card {
    grid-template-rows: clamp(240px, 42vw, 320px) auto;
  }

  .project-group .cases-list .case-item.case-card:not(.case-card-y):not(.case-card-single) {
    grid-template-rows: clamp(240px, 42vw, 320px) auto;
  }

  .project-group .cases-list .case-item.case-card.case-card-single {
    grid-template-rows: clamp(240px, 42vw, 320px) auto;
  }

  .case-card-y .project-images {
    grid-template-rows: clamp(240px, 42vw, 320px) auto;
  }

  .grid-2 {
    gap: 2rem;
  }

  header {
    position: sticky;
    top: 0;
    z-index: 1000;
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }

  header > div {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    align-items: center;
    column-gap: 0.5rem;
    row-gap: 0;
    padding-left: max(clamp(1rem, 5vw, 2rem), env(safe-area-inset-left));
    padding-right: max(clamp(1rem, 5vw, 2rem), env(safe-area-inset-right));
  }

  /*
   * タブレット〜中幅: 1行目を「ロゴ｜電話｜ハンバーガー」、メニューは2行目
   * （540px以下では電話を非表示・下記メディアクエリ）
   */
  header > div > a + nav {
    display: contents;
  }

  header > div > a:first-of-type {
    grid-column: 1;
    grid-row: 1;
    min-width: 0;
  }

  header > div a[href^="tel:"] {
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
  }

  header > div button[aria-controls="main-nav-menu"] {
    display: flex !important;
    grid-column: 3;
    grid-row: 1;
    justify-self: end;
    margin-left: 0;
    /* グリッド右端に寄せつつ、パディング内側へ少し食い込ませて右へ */
    margin-right: -0.45rem;
  }

  /* display:contents の nav に代わり、メニュー列（ul）を2行目に配置 */
  header > div #main-nav-menu {
    grid-column: 1 / -1;
    grid-row: 2;
    width: 100%;
    min-width: 0;
  }

  header > div #main-nav-menu + span {
    display: none;
  }

  header > div #main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
  }

  header > div #main-nav-menu a {
    box-shadow: none;
    width: 100%;
  }

  header > div #main-nav-menu {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transition: max-height 0.3s ease, opacity 0.2s, visibility 0.2s;
    flex-direction: column;
    gap: 0;
    padding: 0;
    border-top: 1px solid var(--line);
    align-items: stretch;
    text-align: right;
  }

  header.nav-open #main-nav-menu {
    max-height: 400px;
    opacity: 1;
    visibility: visible;
    padding: 1rem 0;
  }
}

@media (max-width: 768px) {
  header > div {
    min-height: auto;
    padding: 0.75rem clamp(0.75rem, 4vw, 1.5rem);
    column-gap: 0.5rem;
    row-gap: 0;
  }

  header > div a[href^="tel:"] {
    padding: 0.65rem 1rem;
    font-size: clamp(0.75rem, 3vw, 0.8125rem);
    white-space: nowrap;
  }

  header > div #main-nav-menu {
    width: 100%;
    box-sizing: border-box;
  }

  header > div #main-nav-menu a {
    display: block;
    width: 100%;
    padding: 1rem 0;
    min-height: 48px;
    box-sizing: border-box;
    border-bottom: 1px solid var(--line);
    text-align: right;
    font-weight: 700;
  }

  header > div #main-nav-menu li {
    width: 100%;
  }

  header > div #main-nav-menu li:last-child a {
    border-bottom: 0;
  }

  header.nav-open #main-nav-menu {
    max-height: 320px;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  /* トップ「メッセージ」: モバイルは低めの画像＋本文を縦中央オーバーレイ */
  .message-section .grid-2 {
    display: block;
    position: relative;
    gap: 0;
    border-radius: 8px;
    overflow: hidden;
  }

  /* 背景画像エリアの高さ（本文オーバーレイの基準） */
  .message-section .message-photo {
    margin: 0;
    border-radius: 0;
    display: block;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    min-height: 0;
  }

  .message-section .message-text {
    position: absolute;
    inset: 0;
    z-index: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: stretch;
    gap: 0.75rem;
    padding: 1rem 1rem;
    box-sizing: border-box;
    width: 100%;
    min-height: 0;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    background: linear-gradient(
      180deg,
      rgba(0, 0, 0, 0.4) 0%,
      rgba(0, 0, 0, 0.72) 100%
    );

    & h2 {
      color: #fff;
      margin: 0;
      text-shadow: 0 1px 3px rgba(0, 0, 0, 0.45);
    }

    & p {
      color: rgba(255, 255, 255, 0.96);
      margin: 0;
      text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
    }
  }

  .project-group .cases-list {
    grid-template-columns: 1fr;
  }

  .project-group .cases-list .case-item.case-card {
    height: auto;
  }

  .project-group .cases-list .case-item.case-card:not(.case-card-y):not(.case-card-single) {
    min-height: 0;
  }

  .project-group .cases-list .case-item.case-card.case-card-single {
    min-height: 0;
  }

  .case-card-y {
    grid-template-columns: 1fr;
  }

  /*
   * 施工事例サムネイル（モバイル）
   * グリッド＋height:100%／絶対配置は figure の高さが 0 になり画像が重なることがあるため、
   * flex 縦積み＋画像は通常フロー（width:100% / height:auto）でレイアウトする。
   */
  .project-group .cases-list .case-item.case-card:not(.case-card-y):not(.case-card-single),
  .project-group .cases-list .case-item.case-card.case-card-single,
  .case-card-y .project-images,
  body.page-home ul.cases-list > li.case-card {
    display: flex;
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: stretch;
    gap: 2px;
    height: auto;
    min-height: 0;
    width: 100%;
  }

  .case-card-y .project-images {
    row-gap: 16px;
  }

  .case-card-y .project-images > figure,
  .project-group .cases-list .case-item.case-card:not(.case-card-y):not(.case-card-single) > figure,
  .project-group .cases-list .case-item.case-card.case-card-single > figure,
  body.page-home ul.cases-list > li.case-card > figure {
    position: relative;
    width: 100%;
    margin: 0;
    flex: 0 0 auto;
    min-height: unset;
    overflow: hidden;
  }

  .case-card-y .project-images > figure:first-of-type,
  .project-group .cases-list .case-item.case-card:not(.case-card-y):not(.case-card-single) > figure:first-of-type,
  .project-group .cases-list .case-item.case-card.case-card-single > figure,
  body.page-home ul.cases-list > li.case-card > figure:first-of-type {
    border-radius: 8px 8px 0 0;
  }

  .case-card-y .project-images > figure:nth-of-type(2),
  .project-group .cases-list .case-item.case-card:not(.case-card-y):not(.case-card-single) > figure:nth-of-type(2),
  body.page-home ul.cases-list > li.case-card > figure:nth-of-type(2) {
    border-radius: 0 0 8px 8px;
  }

  /*
   * ベースの height:100% / img の position:relative が残ると高さが潰れるため、
   * 768px以下は aspect-ratio で枠の高さを確定させる。
   */
  .case-card-y .project-images > figure a,
  .project-group .cases-list .case-item.case-card:not(.case-card-y) > figure a,
  body.page-home ul.cases-list > li.case-card > figure a {
    position: relative;
    display: block;
    width: 100%;
    height: auto;
    min-height: unset;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    line-height: 0;
  }

  .case-card-y .project-images > figure img,
  .project-group .cases-list .case-item.case-card:not(.case-card-y) > figure a > img,
  body.page-home ul.cases-list > li.case-card > figure a > img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    max-width: none;
    display: block;
    object-fit: cover;
    z-index: 0;
  }

  .hero-page {
    min-height: 220px;
    padding: 2rem 1rem;
  }

  /* 下層ページ ヒーロー見出し: モバイルは帯を低めに */
  main.page-about > h1:first-child,
  main.page-cases > h1:first-child,
  main.page-contact > h1:first-child {
    min-height: 180px;
    padding: 1.35rem 1rem;
    font-size: clamp(1.5rem, 5.5vw, 2.25rem);
  }

  main.page-about section h2,
  main.page-contact section h2,
  main.page-cases section h2 {
    text-align: center;
  }

  .hero-home {
    min-height: 540px;
    padding-left: 1rem;
    padding-right: 1rem;

    & .container {
      width: 100%;
      max-width: min(100%, 980px);
    }

    & .hero-actions {
      flex-direction: column;
      align-items: stretch;
      width: 100%;
      max-width: 100%;
      gap: 0.75rem;
    }

    & .hero-actions li {
      width: 100%;
    }

    & .hero-btn {
      width: 100%;
      min-height: 56px;
      padding: 0.875rem 1rem;
      text-align: center;
    }
  }

  .section-pad {
    padding: 2.5rem 1rem;
  }

  .company-info-dl {
    margin: 0 -1rem;
    border-radius: 0;
  }

  main.page-contact form {
    padding: 1.5rem 1rem;
  }

  .form-grid .btn,
  .btn.submit-btn {
    min-height: 56px;
  }
}

/* 540px以下: ヘッダーの電話番号を非表示（ロゴ＋メニューのみ） */
@media (max-width: 540px) {
  header > div {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  header > div a[href^="tel:"] {
    display: none;
  }

  header > div button[aria-controls="main-nav-menu"] {
    grid-column: 2;
  }
}

/* 490px以下: メッセージは背景画像なし（テキストのみ・通常配色） */
@media (max-width: 490px) {
  .message-section .message-photo {
    display: none;
  }

  .message-section .grid-2 {
    overflow: visible;
    border-radius: 0;
  }

  .message-section .message-text {
    position: static;
    z-index: auto;
    inset: auto;
    min-height: 0;
    overflow: visible;
    -webkit-overflow-scrolling: auto;
    background: none;
    padding: 0;
    justify-content: flex-start;
  }

  .message-section .message-text h2 {
    color: var(--text-body);
    text-shadow: none;
    margin: 0 0 1rem;
  }

  .message-section .message-text p {
    color: var(--text-body);
    text-shadow: none;
  }
}

/* 極狭幅: メッセージの文字サイズのみ調整（レイアウトは 768px 以下と同じ） */
@media (max-width: 393px) {
  .message-section .message-text {
    padding: max(0.75rem, env(safe-area-inset-top, 0px)) max(0.75rem, env(safe-area-inset-right, 0px))
      max(0.75rem, env(safe-area-inset-bottom, 0px)) max(0.75rem, env(safe-area-inset-left, 0px));
  }

  .message-section .message-text h2 {
    font-size: clamp(1.2rem, 5.2vw, 1.45rem);
    line-height: 1.35;
  }

  .message-section .message-text p {
    font-size: 0.875rem;
    line-height: 1.65;
  }
}

@media (max-width: 480px) {
  header > div {
    padding: 0.75rem 0.75rem;
  }

  /* height:auto だと SVG ロゴの高さが 0 になる環境があるため固定高さを維持 */
  header > div > a img,
  header > div > a h1 img {
    max-width: min(140px, 42vw);
    height: 52px;
    width: auto;
    object-fit: contain;
  }

  .section-pad {
    padding: 2rem 0.75rem;
  }
}