/* =========================================================
   Gran estate株式会社 — style.css
   参考: www.thehouse123.co.jp
   方向性: 高級感のある余白 / ミニマル / 明朝体のエレガンス（白ベース・文字大きめ）
   装飾は最小限。余白・大きな明朝・細い罫線で上質さを出す。
   ========================================================= */

:root {
  --paper: #ffffff;
  --paper-soft: #f7f5f1;     /* 温かみのあるオフホワイト */
  --ink: #201f1d;            /* 近黒（本文・見出し） */
  --muted: #7c7a74;          /* 補足 */
  --line: #e4e1da;           /* 細い罫線 */
  --gold: #b9973f;           /* ロゴ由来のゴールド（ヘアラインに極少量） */
  --teal: #3789a9;           /* ロゴ由来のティール（リンク等に極少量） */

  --container: 1180px;
  --measure: 760px;          /* テキストの読みやすい幅 */
  --ease: cubic-bezier(.4, 0, .2, 1);

  --serif: "Noto Serif JP", "Times New Roman", serif;
  --sans: "Noto Sans JP", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  font-weight: 400;
  font-size: 1.06rem;          /* 文字大きめ */
  line-height: 2.05;           /* たっぷりの行間 */
  letter-spacing: .04em;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 28px; }
@media (min-width: 700px) { .container { padding-inline: 56px; } }

/* たっぷりの縦余白 */
.section { padding-block: clamp(96px, 17vw, 200px); }
.section--soft { background: var(--paper-soft); }
.measure { max-width: var(--measure); margin-inline: auto; }

/* セクション見出し */
.head { margin-bottom: clamp(56px, 8vw, 96px); }
.head.center { text-align: center; }
.eyebrow {
  display: block;
  font-family: var(--sans);
  font-size: .72rem; font-weight: 500;
  letter-spacing: .42em; text-indent: .42em;
  color: var(--muted); text-transform: uppercase;
  margin-bottom: 26px;
}
h1, h2, h3 { font-family: var(--serif); font-weight: 500; color: var(--ink); letter-spacing: .08em; }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.35rem); line-height: 1.75; }
h3 { font-size: clamp(1.15rem, 1.8vw, 1.35rem); line-height: 1.8; }
.head .lead { margin-top: 30px; color: var(--muted); font-size: 1.02rem; line-height: 2.1; }

/* 細いゴールドのヘアライン（アクセントは極少量） */
.hairline { width: 40px; height: 1px; background: var(--gold); margin: 30px 0 0; }
.center .hairline { margin-inline: auto; }

/* ---------- Links / minimal buttons ---------- */
.link {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: .95rem; letter-spacing: .12em; color: var(--ink);
  padding-bottom: 6px; border-bottom: 1px solid var(--ink);
  transition: gap .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.link:hover { gap: 20px; color: var(--muted); border-color: var(--muted); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 14px;
  padding: 20px 44px; font-size: .95rem; font-weight: 500; letter-spacing: .16em;
  background: var(--ink); color: #fff; border: 1px solid var(--ink); cursor: pointer;
  transition: background .25s var(--ease), color .25s var(--ease);
}
.btn:hover { background: transparent; color: var(--ink); }
.btn--block { width: 100%; }

/* ---------- Header ---------- */
.header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.82); backdrop-filter: blur(12px); transition: border-color .3s, background .3s; border-bottom: 1px solid transparent; }
.header.is-scrolled { border-color: var(--line); }
.header__inner { display: flex; align-items: center; justify-content: space-between; height: 92px; }
.brand { display: flex; align-items: center; gap: 14px; }
.brand img { height: 42px; width: auto; }
.brand__name { font-family: var(--serif); font-weight: 500; font-size: 1.4rem; letter-spacing: .1em; color: var(--ink); }
.brand__sub { display: block; font-size: .58rem; letter-spacing: .34em; color: var(--muted); margin-top: 3px; }

.nav { display: none; align-items: center; gap: 46px; }
.nav > a { font-size: .82rem; letter-spacing: .22em; color: var(--ink); transition: color .2s; text-transform: uppercase; }
.nav > a .jp { display: block; font-size: .58rem; letter-spacing: .12em; color: var(--muted); text-align: center; margin-top: 4px; text-transform: none; }
.nav > a:hover { color: var(--muted); }
.nav__cta { border-bottom: 1px solid var(--ink); padding-bottom: 4px; }

.nav-toggle { display: inline-flex; flex-direction: column; gap: 7px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 28px; height: 1px; background: var(--ink); transition: .2s; }
@media (min-width: 1000px) { .nav { display: flex; } .nav-toggle { display: none; } }

.nav-mobile { display: none; border-top: 1px solid var(--line); background: #fff; padding: 10px 0 28px; }
.nav-mobile.open { display: block; }
.nav-mobile a { display: block; padding: 16px 28px; font-size: .95rem; letter-spacing: .12em; }
.nav-mobile a small { color: var(--muted); margin-left: 10px; letter-spacing: .04em; }

/* ---------- Hero（全面写真＋白文字） ---------- */
.hero {
  position: relative; min-height: 90vh; display: flex; align-items: center;
  background-color: #12141a;                                   /* 写真が無い時のフォールバック */
  background-image:
    linear-gradient(180deg, rgba(12,14,20,.34) 0%, rgba(12,14,20,.30) 40%, rgba(12,14,20,.62) 100%),
    url('hero.jpg');
  background-size: cover; background-position: center; background-repeat: no-repeat;
  color: #fff;
}
.hero__inner { padding-block: clamp(120px, 16vw, 180px); max-width: 940px; }
.hero__area { display: block; font-size: .72rem; letter-spacing: .4em; color: rgba(255,255,255,.82); margin-bottom: 40px; }
.hero h1 {
  font-size: clamp(2.1rem, 5.2vw, 3.7rem);
  font-weight: 500; line-height: 1.85; letter-spacing: .1em; color: #fff;
  text-shadow: 0 2px 30px rgba(0,0,0,.35);
}
.hero h1 .thin { color: rgba(255,255,255,.72); }
.hero h1 .nb { white-space: nowrap; }   /* 語のまとまりで折り返し、単字の孤立を防ぐ */
.hero__lead { margin-top: 44px; max-width: 860px; color: rgba(255,255,255,.88); font-size: 1.05rem; line-height: 2.2; text-shadow: 0 1px 20px rgba(0,0,0,.35); }
.hero__lead-2 { display: inline-block; padding-left: 2.2em; }   /* 2行目を少し右へ */
.hero__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 36px; margin-top: 56px; }

/* ヒーロー上のボタン・リンクは白基調に */
.hero .btn { background: #fff; color: var(--ink); border-color: #fff; }
.hero .btn:hover { background: transparent; color: #fff; }
.hero .link { color: #fff; border-color: rgba(255,255,255,.7); }
.hero .link:hover { color: rgba(255,255,255,.75); border-color: rgba(255,255,255,.4); }

/* スクロール誘導 */
.hero__scroll { position: absolute; left: 50%; bottom: 34px; transform: translateX(-50%); font-size: .62rem; letter-spacing: .3em; color: rgba(255,255,255,.7); writing-mode: vertical-rl; }

/* ---------- Service（エディトリアルな行組み） ---------- */
.svc-list { border-top: 1px solid var(--line); }
.svc-row {
  display: grid; gap: 14px 48px; grid-template-columns: 1fr;
  padding: clamp(36px, 5vw, 56px) 0; border-bottom: 1px solid var(--line);
  align-items: baseline;
}
@media (min-width: 820px) { .svc-row { grid-template-columns: auto 1fr; } }
.svc-row__head { display: flex; align-items: baseline; gap: 24px; min-width: 320px; }
.svc-row__no { font-family: var(--serif); font-size: 1.05rem; color: var(--gold); letter-spacing: .1em; }
.svc-row__ttl { font-family: var(--serif); font-weight: 500; font-size: clamp(1.3rem, 2.2vw, 1.7rem); letter-spacing: .08em; }
.svc-row p { color: var(--muted); font-size: 1rem; line-height: 2.05; }
.svc-note { margin-top: 48px; color: var(--muted); text-align: center; font-size: .98rem; }

/* ---------- Works（写真差し替え前提のミニマルな枠） ---------- */
.works-grid { display: grid; gap: 1px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); background: var(--line); border: 1px solid var(--line); }
.work { position: relative; aspect-ratio: 4 / 3; background: var(--paper); display: flex; align-items: center; justify-content: center; text-align: center; padding: 24px; transition: background .3s var(--ease); }
.work:hover { background: var(--paper-soft); }
.work__cat { display: block; font-size: .66rem; letter-spacing: .3em; color: var(--gold); text-transform: uppercase; margin-bottom: 14px; }
.work__ttl { font-family: var(--serif); font-size: 1.12rem; letter-spacing: .06em; }
.works-note { margin-top: 40px; text-align: center; color: var(--muted); font-size: .92rem; letter-spacing: .04em; }
/* 実績（写真付き・案件管理システム連携） */
.work--ph { padding: 0; overflow: hidden; }
.work--ph .work__img { position: absolute; inset: 0; background-size: cover; background-position: center; transition: transform .6s var(--ease); }
.work--ph:hover .work__img { transform: scale(1.05); }
.work--ph .work__noimg { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #f7f5f1, #ece7dd); }
.work--ph .work__noimg img { width: 42%; max-width: 120px; opacity: .45; }
.work--ph .work__label { position: absolute; left: 0; right: 0; bottom: 0; padding: 30px 18px 16px; text-align: left; background: linear-gradient(to top, rgba(24,23,20,.86), rgba(24,23,20,.12) 72%, transparent); color: #fff; }
.work--ph .work__label .c { display: block; font-size: .58rem; letter-spacing: .3em; color: #e6cd8c; text-transform: uppercase; margin-bottom: 6px; }
.work--ph .work__label .t { font-family: var(--serif); font-size: 1rem; line-height: 1.4; }

/* ---------- About（代表挨拶 + 会社概要） ---------- */
.message { text-align: center; }
.message__catch { font-family: var(--serif); font-weight: 500; font-size: clamp(1.4rem, 3vw, 2.05rem); line-height: 2; letter-spacing: .1em; color: var(--ink); margin-bottom: 48px; }
.message p { color: #3f3e3a; margin-bottom: 26px; text-align: left; }
.message__sign { text-align: right; color: var(--muted); margin-top: 40px; letter-spacing: .06em; }
.message__sign b { font-family: var(--serif); font-weight: 500; color: var(--ink); font-size: 1.15rem; margin-left: 10px; letter-spacing: .1em; }

.company { width: 100%; border-collapse: collapse; margin-top: 72px; }
.company th, .company td { text-align: left; padding: 26px 8px; border-bottom: 1px solid var(--line); vertical-align: top; font-size: 1rem; }
.company th { width: 30%; font-family: var(--sans); font-weight: 500; color: var(--ink); letter-spacing: .12em; white-space: nowrap; }
.company td { color: #4a4945; }
.bank-list { display: flex; flex-wrap: wrap; gap: 6px 28px; }
.bank-list li { position: relative; padding-left: 16px; }
.bank-list li::before { content: "—"; position: absolute; left: 0; color: var(--gold); }

/* ---------- Contact（下線スタイルの上品なフォーム） ---------- */
.contact-grid { display: grid; gap: 56px; grid-template-columns: 1fr; }
@media (min-width: 940px) { .contact-grid { grid-template-columns: 1.35fr .8fr; gap: 80px; align-items: start; } }
.form { display: grid; gap: 34px; }
.field { display: grid; gap: 12px; }
.field label { font-size: .78rem; letter-spacing: .16em; color: var(--muted); text-transform: uppercase; }
.field .req { color: var(--gold); margin-left: 8px; letter-spacing: 0; }
.field input, .field select, .field textarea {
  font-family: var(--sans); font-size: 1.02rem; color: var(--ink);
  padding: 12px 2px; border: 0; border-bottom: 1px solid var(--line); background: transparent; width: 100%;
  transition: border-color .2s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--ink); }
.field textarea { resize: vertical; min-height: 130px; }
.form__note { font-size: .82rem; color: var(--muted); line-height: 1.9; }

.contact-info { display: grid; gap: 30px; align-content: start; }
.contact-info__row dt { font-size: .68rem; letter-spacing: .28em; color: var(--gold); text-transform: uppercase; margin-bottom: 8px; }
.contact-info__row dd { color: var(--ink); }
.contact-info .tel { font-family: var(--serif); font-size: 1.7rem; letter-spacing: .06em; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); padding-block: 64px; }
.footer__inner { display: flex; flex-wrap: wrap; gap: 36px; justify-content: space-between; align-items: flex-start; }
.footer__brand { display: flex; align-items: center; gap: 14px; }
.footer__brand img { height: 42px; }
.footer__brand b { font-family: var(--serif); font-weight: 500; font-size: 1.3rem; letter-spacing: .1em; color: var(--ink); }
.footer__brand span { display: block; font-size: .58rem; letter-spacing: .3em; color: var(--muted); margin-top: 4px; }
.footer__nav { display: flex; flex-wrap: wrap; gap: 30px; }
.footer__nav a { font-size: .78rem; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); transition: color .2s; }
.footer__nav a:hover { color: var(--ink); }
.footer__copy { width: 100%; margin-top: 48px; padding-top: 28px; border-top: 1px solid var(--line); font-size: .78rem; letter-spacing: .06em; color: var(--muted); line-height: 2; }

/* ---------- Motion ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; scroll-behavior: auto !important; } .reveal { opacity: 1; transform: none; } }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 2px solid var(--gold); outline-offset: 4px; }