/* =========================================================
   株式会社サンプル - style.css
   Pure CSS / no framework。配色・フォント・余白は :root のトークンで一元管理する。
   新色を直値で書かず、必要ならトークンを :root に足して命名を揃えること。
   ========================================================= */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { overflow-x: hidden; }
body, h1, h2, h3, h4, p, ul, ol, figure, dl, dd, table, th, td { margin: 0; padding: 0; }
ul, ol { list-style: none; }
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { border: none; background: none; cursor: pointer; font: inherit; color: inherit; }
table { border-collapse: collapse; width: 100%; }

/* ---------- Design Tokens (P1 コーポレート・ブルー) ---------- */
:root {
  /* 配色 */
  --c-primary: #1F6BE6;          /* 主役ブルー */
  --c-primary-deep: #0F2046;     /* ネイビー（hover・見出し） */
  --c-primary-soft: #E8F1FE;     /* 淡い青背景 */
  --c-accent: #5BA3F0;           /* サブアクセント */

  --c-bg: #FFFFFF;
  --c-bg-cream: #F5F7FB;
  --c-text: #0F2046;
  --c-text-muted: #6B7280;
  --c-border: #E4E7EF;
  --c-danger: #c0392b;

  /* フォント */
  --f-base: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
  --f-disp: 'Inter', 'Noto Sans JP', sans-serif;

  /* レイアウト */
  --container: 1120px;
  --gutter: 24px;
  --header-h: 72px;
  --radius: 6px;
  --radius-pill: 999px;
  --shadow-soft: 0 10px 30px rgba(0,0,0,0.06);
  --shadow-card: 0 24px 60px rgba(0,0,0,0.08);

  /* コンポーネント用追加トークン */
  --grad-accent: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-deep) 100%);
}

/* ---------- Base ---------- */
html, body {
  font-family: var(--f-base);
  color: var(--c-text);
  background: var(--c-bg);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}
@media (max-width: 768px) {
  :root { --header-h: 64px; }
}

h1, h2, h3 { line-height: 1.4; font-weight: 600; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding: 88px 0; }
.section--cream { background: var(--c-bg-cream); }
.section__head { text-align: center; max-width: 760px; margin: 0 auto 48px; }
.section__label { display: block; font-family: var(--f-disp); font-size: 13px; letter-spacing: 0.3em; color: var(--c-primary); text-transform: uppercase; margin-bottom: 10px; }
.section__title { font-size: clamp(22px, 4vw, 30px); font-weight: 600; letter-spacing: 0.06em; }
.section__lead { margin-top: 16px; color: var(--c-text-muted); font-size: 15px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: var(--radius-pill);
  background: var(--c-primary); color: #fff; font-weight: 600;
  letter-spacing: 0.08em; transition: background 0.2s, transform 0.2s;
}
.btn:hover { background: var(--c-primary-deep); transform: translateY(-1px); }
.btn--lg { padding: 16px 32px; font-size: 15px; }

/* ---------- Header ---------- */
.hdr {
  position: sticky; top: 0; z-index: 100;
  border-bottom: 1px solid var(--c-border);
}
.hdr::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: rgba(255,255,255,0.92);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  backdrop-filter: saturate(180%) blur(8px);
}
.hdr__inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.hdr__logo-img { width: auto; max-height: 44px; }
.nav { display: flex; align-items: center; gap: 22px; }
.nav > a { font-size: 14px; letter-spacing: 0.04em; transition: color 0.2s; }
.nav > a:hover { color: var(--c-primary); }
.nav__sns { display: none; }
.hdr__actions { display: flex; align-items: center; gap: 14px; }
.hdr__sns { display: inline-flex; }
.sns-icon { width: 22px; height: 22px; }
.sns-symbols { position: absolute; width: 0; height: 0; overflow: hidden; }
.hdr__cta {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 10px 20px; border-radius: var(--radius-pill);
  background: var(--c-primary); color: #fff; font-size: 14px; font-weight: 600;
  transition: background 0.2s;
}
.hdr__cta:hover { background: var(--c-primary-deep); }

/* Burger */
.hdr__burger { display: none; width: 40px; height: 40px; position: relative; z-index: 96; }
.hdr__burger span {
  position: absolute; left: 9px; right: 9px; height: 2px; background: var(--c-text);
  transition: transform 0.3s, opacity 0.2s;
}
.hdr__burger span:nth-child(1) { top: 13px; }
.hdr__burger span:nth-child(2) { top: 19px; }
.hdr__burger span:nth-child(3) { top: 25px; }
.hdr__burger.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hdr__burger.is-open span:nth-child(2) { opacity: 0; }
.hdr__burger.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.nav-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,0.4);
  opacity: 0; visibility: hidden; transition: opacity 0.3s, visibility 0.3s; z-index: 90;
}
.nav-backdrop.is-open { opacity: 1; visibility: visible; }

/* ---------- Page hero ---------- */
.page-hero { background: var(--c-primary-soft); padding: 64px 0; text-align: center; }
.page-hero__label { display: block; font-family: var(--f-disp); letter-spacing: 0.3em; color: var(--c-primary); font-size: 13px; text-transform: uppercase; margin-bottom: 10px; }
.page-hero__title { font-size: clamp(24px, 5vw, 34px); letter-spacing: 0.08em; }
.page-hero__lead { margin-top: 14px; color: var(--c-text-muted); font-size: 15px; }

/* ---------- Hero HERO-01（背景写真オーバーレイ） ---------- */
.hero { position: relative; min-height: calc(100vh - var(--header-h)); display: flex; align-items: center; overflow: hidden; background: #000; }
.hero__bg { position: absolute; inset: 0; z-index: 0; }
.hero__bg img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero__overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(135deg, rgba(15,32,70,0.88) 0%, rgba(15,32,70,0.65) 50%, rgba(10,20,50,0.92) 100%);
}
.hero__inner { position: relative; z-index: 2; padding: 80px 0; max-width: 860px; color: #fff; }
.hero__kicker { font-family: var(--f-disp); font-size: 13px; font-weight: 600; letter-spacing: 0.28em; color: var(--c-accent); text-transform: uppercase; margin-bottom: 22px; }
.hero__title { font-size: clamp(30px, 5.4vw, 56px); font-weight: 700; line-height: 1.35; letter-spacing: 0.02em; margin-bottom: 26px; }
.hero__title-l1, .hero__title-l2 { display: block; }
.hero__lead { font-size: 16px; line-height: 2; max-width: 620px; opacity: 0.9; margin-bottom: 40px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 16px; }
@media (max-width: 768px) {
  .hero { min-height: 88svh; }
  .hero__title { font-size: 30px; }
  .hero__lead { font-size: 14px; line-height: 1.9; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; text-align: center; justify-content: center; }
}

/* ---------- About FEAT-01（2カラム：テキスト＋画像） ---------- */
.about-block { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-block__body .section__label { text-align: left; }
.about-block__body .section__title { text-align: left; }
.about-block__body .section__lead { text-align: left; margin-bottom: 0; }
.about-block__media { aspect-ratio: 4 / 3; overflow: hidden; border-radius: var(--radius); background: var(--c-bg-cream); position: relative; }
.about-block__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s ease; }
.about-block__media:hover img { transform: scale(1.04); }
@media (max-width: 960px) {
  .about-block { grid-template-columns: 1fr; gap: 40px; }
}

/* ---------- Products FEAT-03（採番カードグリッド） ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.svc-card {
  position: relative; padding: 38px 30px 34px;
  background: var(--c-bg); border: 1px solid var(--c-border);
  border-radius: var(--radius); transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s; overflow: hidden;
}
.svc-card::before { content: ""; position: absolute; left: 0; top: 0; width: 3px; height: 0; background: var(--c-primary); transition: height 0.3s; }
.svc-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.svc-card:hover::before { height: 100%; }
.svc-card__no { font-family: var(--f-disp); font-size: 13px; letter-spacing: 0.2em; color: var(--c-primary); font-weight: 600; }
.svc-card__title { font-size: 19px; margin: 12px 0 14px; letter-spacing: 0.02em; }
.svc-card__en { font-family: var(--f-disp); font-size: 11px; letter-spacing: 0.2em; color: var(--c-text-muted); text-transform: uppercase; font-weight: 500; }
.svc-card__desc { color: var(--c-text-muted); font-size: 14px; line-height: 1.95; margin-top: 12px; }
@media (max-width: 1080px) { .svc-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) { .svc-grid { grid-template-columns: 1fr; } }

/* ---------- Reasons FEAT-04（強み・選ばれる理由） ---------- */
.reasons { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.reason-card {
  position: relative; background: var(--c-bg); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 34px 28px 28px; box-shadow: var(--shadow-soft);
  transition: transform 0.2s, box-shadow 0.2s; overflow: hidden;
}
.reason-card::before { content: ""; position: absolute; left: 0; top: 0; right: 0; height: 4px; background: var(--grad-accent); }
.reason-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); }
.reason-card__no {
  width: 54px; height: 54px; border-radius: 50%;
  background: var(--grad-accent); color: #fff; font-weight: 800;
  font-size: 22px; display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-soft); margin-bottom: 16px;
}
.reason-card__title { font-size: 18px; font-weight: 800; letter-spacing: 0.01em; line-height: 1.5; }
.reason-card__title em { font-style: normal; color: var(--c-primary); }
.reason-card__desc { margin-top: 11px; font-size: 14px; color: var(--c-text-muted); line-height: 1.95; }
@media (max-width: 1080px) { .reasons { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) { .reasons { grid-template-columns: 1fr; } }

/* ---------- Flow FLOW-03（カード型4ステップ） ---------- */
.flow-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.flow-cards__step {
  position: relative; padding: 30px 24px;
  border-radius: var(--radius); background: var(--c-bg-cream); border: 1px solid var(--c-border);
}
.flow-cards__no {
  display: inline-grid; place-items: center;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--c-primary); color: #fff;
  font-family: var(--f-disp); font-weight: 700;
}
.flow-cards__title { margin-top: 18px; font-size: 16.5px; font-weight: 700; }
.flow-cards__desc { margin-top: 10px; font-size: 13.5px; color: var(--c-text-muted); line-height: 1.8; }
@media (max-width: 1080px) { .flow-cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 768px) { .flow-cards { grid-template-columns: 1fr; } }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--c-border); }
.faq__item { border-bottom: 1px solid var(--c-border); }
.faq__q { width: 100%; text-align: left; padding: 20px 8px; font-weight: 600; font-size: 15px; display: flex; align-items: center; gap: 14px; }
.faq__q::before { content: "Q"; font-family: var(--f-disp); color: var(--c-primary); font-weight: 700; flex-shrink: 0; }
.faq__a { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; color: var(--c-text-muted); font-size: 14px; }
.faq__item.is-open .faq__a { max-height: 500px; padding: 0 8px 20px 36px; }

/* ---------- News（新着情報・アコーディオン / news.js と対応） ---------- */
.news__list { max-width: 860px; margin: 0 auto; border-top: 1px solid var(--c-border); }
.news__item { border-bottom: 1px solid var(--c-border); }
.news__head {
  width: 100%; display: flex; align-items: center; gap: 14px;
  padding: 22px 8px; text-align: left;
}
.news__date { font-family: var(--f-disp); color: var(--c-primary); font-size: 14px; letter-spacing: 0.06em; flex-shrink: 0; }
.news__cat {
  font-size: 11px; letter-spacing: 0.08em; color: var(--c-text-muted);
  border: 1px solid var(--c-border); border-radius: var(--radius-pill);
  padding: 3px 12px; flex-shrink: 0;
}
.news__title { flex: 1; font-size: 15px; font-weight: 500; }
.news__toggle { width: 12px; height: 12px; position: relative; flex-shrink: 0; }
.news__toggle::before, .news__toggle::after { content: ""; position: absolute; background: var(--c-text-muted); transition: transform 0.3s; }
.news__toggle::before { top: 5px; left: 0; right: 0; height: 2px; }
.news__toggle::after { left: 5px; top: 0; bottom: 0; width: 2px; }
.news__item.is-open .news__toggle::after { transform: scaleY(0); }
.news__body { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; }
.news__item.is-open .news__body { max-height: 600px; }
.news__body-inner { padding: 0 8px 24px; color: var(--c-text-muted); font-size: 14px; }
.news__link { display: inline-flex; gap: 6px; margin-top: 12px; color: var(--c-primary); font-weight: 600; }
.news__empty { text-align: center; color: var(--c-text-muted); padding: 40px 0; }

/* ---------- CTA帯 CTA-02（斜めグラデーション＋光彩） ---------- */
.cta-band { position: relative; overflow: hidden; color: #fff; text-align: center; background: linear-gradient(135deg, var(--c-primary-deep), var(--c-primary)); padding: 72px 0; }
.cta-band::before { content: ""; position: absolute; right: -80px; top: -80px; width: 320px; height: 320px; background: radial-gradient(circle, rgba(255,255,255,0.18), rgba(255,255,255,0) 70%); pointer-events: none; }
.cta-band .container { position: relative; z-index: 1; }
.cta-band__label { font-family: var(--f-disp); letter-spacing: 0.3em; font-size: 12px; text-transform: uppercase; opacity: 0.85; }
.cta-band__title { font-size: clamp(22px, 4.4vw, 30px); font-weight: 600; margin-top: 10px; letter-spacing: 0.04em; }
.cta-band__lead { margin-top: 14px; font-size: 14.5px; opacity: 0.92; line-height: 1.9; }
.cta-band__btns { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; margin-top: 28px; }
.cta-band .btn { background: #fff; color: var(--c-primary-deep); }
.cta-band .btn:hover { background: rgba(255,255,255,0.88); transform: translateY(-1px); }
@media (max-width: 768px) {
  .cta-band { padding: 52px 0; }
  .cta-band__btns .btn { width: 100%; justify-content: center; }
}

/* ---------- Float CTA（PC右下固定） ---------- */
.float-cta {
  position: fixed; right: 22px; bottom: 28px; z-index: 70;
  display: inline-flex; align-items: center; gap: 9px; padding: 14px 22px;
  border-radius: var(--radius-pill); background: var(--c-primary); color: #fff;
  font-weight: 700; font-size: 14px; box-shadow: var(--shadow-card);
  transition: background 0.25s, transform 0.25s;
}
.float-cta:hover { background: var(--c-primary-deep); transform: translateY(-3px); }
@media (max-width: 768px) { .float-cta { display: none; } }

/* ---------- Cards / CTA-01 ---------- */
.cta-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; max-width: 880px; margin: 0 auto; }
.cta-card { display: block; padding: 32px 28px; background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius); box-shadow: var(--shadow-soft); transition: transform 0.2s, box-shadow 0.2s; text-align: center; }
.cta-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-card); }
.cta-card__label { font-family: var(--f-disp); letter-spacing: 0.2em; color: var(--c-primary); font-size: 12px; text-transform: uppercase; }
.cta-card__title { margin: 8px 0 10px; font-size: 19px; }
.cta-card__desc { color: var(--c-text-muted); font-size: 14px; }
.cta-card__btn { display: inline-block; margin-top: 16px; color: var(--c-primary); font-weight: 600; }

/* ---------- Form（Web3Forms / contact.js と対応） ---------- */
.form { max-width: 720px; margin: 0 auto; }
.form__intro { font-size: 13px; color: var(--c-text-muted); margin-bottom: 24px; }
.form__intro strong { color: var(--c-danger); }
.form__field { margin-bottom: 22px; }
.form__label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 8px; }
.form__required { font-size: 11px; color: #fff; background: var(--c-danger); border-radius: 3px; padding: 2px 7px; margin-left: 6px; }
.form__optional { font-size: 11px; color: var(--c-text-muted); border: 1px solid var(--c-border); border-radius: 3px; padding: 2px 7px; margin-left: 6px; }
.form__input, .form__select, .form__textarea {
  width: 100%; padding: 13px 14px; border: 1px solid var(--c-border); border-radius: var(--radius);
  background: #fff; font-size: 15px; font-family: inherit; outline: none; transition: border-color 0.2s, box-shadow 0.2s;
}
.form__input:focus, .form__select:focus, .form__textarea:focus { border-color: var(--c-primary); box-shadow: 0 0 0 3px var(--c-primary-soft); }
.form__textarea { min-height: 160px; resize: vertical; }
.form__hint { display: block; margin-top: 6px; font-size: 12px; color: var(--c-text-muted); }
.form__check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; cursor: pointer; }
.form__check input { margin-top: 5px; }
.form__honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form__submit { width: 100%; display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 16px; border-radius: var(--radius-pill); background: var(--c-primary); color: #fff; font-weight: 600; letter-spacing: 0.1em; transition: background 0.2s; }
.form__submit:hover { background: var(--c-primary-deep); }
.form__submit:disabled { opacity: 0.6; cursor: default; }
.form__success { max-width: 720px; margin: 0 auto 24px; padding: 28px; border: 1px solid var(--c-primary); border-radius: var(--radius); background: var(--c-primary-soft); text-align: center; }
.form__error { padding: 14px; border: 1px solid var(--c-danger); border-radius: var(--radius); background: #fdecea; color: var(--c-danger); font-size: 14px; margin-bottom: 20px; }

/* ---------- Footer ---------- */
.ftr { background: var(--c-primary-deep); color: #cdd5e0; padding: 64px 0 32px; }
.ftr__inner { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; }
.ftr__about, .ftr__address { font-size: 13px; color: #9aaabb; margin-top: 14px; line-height: 1.9; }
.ftr__tel a { font-family: var(--f-disp); font-size: 18px; letter-spacing: 0.06em; margin-top: 10px; display: inline-block; color: #fff; }
.ftr__heading { font-family: var(--f-disp); letter-spacing: 0.2em; font-size: 13px; color: #fff; margin-bottom: 16px; text-transform: uppercase; }
.ftr__links { display: flex; flex-direction: column; gap: 10px; }
.ftr__links a { font-size: 14px; color: #9aaabb; transition: color 0.2s; }
.ftr__links a:hover { color: #fff; }
.ftr__bottom { border-top: 1px solid rgba(255,255,255,0.12); margin-top: 48px; padding-top: 24px; text-align: center; }
.ftr__copy { font-size: 12px; color: #6b7a8f; letter-spacing: 0.06em; }

/* ---------- Mobile sticky CTA bar ---------- */
.mobile-cta { display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 80; background: rgba(255,255,255,0.97); border-top: 1px solid var(--c-border); backdrop-filter: blur(8px); }
.mobile-cta__inner { display: flex; }
.mobile-cta__btn { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 9px 4px; font-size: 10px; color: var(--c-text); }
.mobile-cta__btn--primary { background: var(--c-primary); color: #fff; }
.mobile-cta__btn-icon svg { width: 22px; height: 22px; }

/* ---------- Fade-in（main.js / news.js と対応） ---------- */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.fade-in.is-visible { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .hdr__burger { display: block; }
  .hdr__cta { display: none; }
  .nav {
    position: fixed; top: 0; right: 0; bottom: 0; width: min(78vw, 320px);
    flex-direction: column; align-items: flex-start; gap: 4px;
    background: #fff; padding: calc(var(--header-h) + 16px) 28px 28px;
    transform: translateX(100%); transition: transform 0.35s ease; z-index: 95;
    box-shadow: -10px 0 40px rgba(0,0,0,0.15); overflow-y: auto;
  }
  .nav.is-open { transform: translateX(0); }
  .nav > a { width: 100%; padding: 14px 0; border-bottom: 1px solid var(--c-border); font-size: 15px; }
  .nav__sns { display: flex; gap: 16px; margin-top: 20px; }
}

@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .ftr__inner { grid-template-columns: 1fr; gap: 32px; }
  .mobile-cta { display: block; }
  body { padding-bottom: 60px; }
  .news__head { flex-wrap: wrap; gap: 8px 12px; }
  .news__title { flex-basis: 100%; }
}

/* ---------- Accessibility：動きを抑える設定への配慮 ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .fade-in { opacity: 1; transform: none; }
}