/* ============================================================
   株式会社Rectangle — 骨組みCSS（レスポンシブ対応）
   Base: white × red / Mobile-first + breakpoints
   ============================================================ */

/* ---------- design tokens ---------- */
:root{
  --red:       #e2231a;
  --red-dark:  #b81810;
  --red-soft:  #fff1f0;
  --ink:       #1a1a1e;
  --ink-soft:  #55555f;
  --line:      #e7e7ea;
  --bg:        #ffffff;
  --bg-alt:    #f7f7f9;
  --radius:    14px;
  --shadow:    0 12px 34px rgba(20,20,30,.10);

  --container:  1180px;
  --gutter:     20px;
  --header-h:   68px;
  --ease:       cubic-bezier(.16,.84,.44,1);
}

/* ---------- reset ---------- */
*{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
body{
  font-family:"Noto Sans JP",system-ui,sans-serif;
  color:var(--ink); background:var(--bg); line-height:1.8;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; height:auto; display:block; }
ul{ list-style:none; }

/* ---------- layout helpers ---------- */
.container{ width:100%; max-width:var(--container); margin-inline:auto; padding-inline:var(--gutter); }
.accent{ color:var(--red); }

/* 画像スロットが空（読み込み失敗）のときのプレースホルダ表示 */
.is-empty{
  background:
    repeating-linear-gradient(45deg, var(--bg-alt) 0 12px, #eee 12px 24px);
  position:relative;
}
.is-empty img{ display:none; }
.is-empty::after{
  content:"IMAGE"; position:absolute; inset:0; display:grid; place-items:center;
  font-family:"Oswald",sans-serif; letter-spacing:.2em; font-size:13px; color:#aaa;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.5em;
  font-weight:700; font-size:15px; padding:14px 30px; border-radius:999px;
  border:2px solid transparent; cursor:pointer; transition:.3s;
}
/* 全ボタン共通: ホバーで浮き上がる */
.btn:hover{ transform:translateY(-4px); }
.btn-primary{ background:var(--red); color:#fff; }
.btn-primary:hover{ background:var(--red-dark); box-shadow:0 14px 26px rgba(226,35,26,.38); }
.btn-ghost{ border-color:rgba(255,255,255,.7); color:#fff; }
.btn-ghost:hover{ background:#fff; color:var(--ink); border-color:#fff; box-shadow:0 14px 26px rgba(0,0,0,.22); }
.btn-white:hover{ box-shadow:0 16px 30px rgba(0,0,0,.28); }
.btn-block{ width:100%; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:100; height:var(--header-h);
  background:rgba(255,255,255,.9); backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; height:var(--header-h); }
.brand{ display:flex; align-items:center; }
.brand-logo{ height:36px; width:auto; }
.brand-text{ font-family:"Oswald",sans-serif; font-size:24px; font-weight:700; letter-spacing:.06em; }

.global-nav ul{ display:flex; align-items:center; gap:6px; }
.global-nav li{ flex:0 0 auto; }
.global-nav a{ font-size:14.5px; color:var(--ink-soft); white-space:nowrap;
  transition:transform .25s var(--ease), box-shadow .25s, background .25s, color .25s, border-color .25s; }
/* セクションリンク＝ボタン化（PC）。ホバーで浮き上がる */
.global-nav a:not(.nav-cta):not(.nav-external){ padding:9px 16px; border-radius:999px; color:var(--ink);
  border:1px solid transparent; }
.global-nav a:not(.nav-cta):not(.nav-external):hover{ color:var(--red); background:#fff; border-color:var(--line);
  transform:translateY(-4px); box-shadow:0 10px 20px rgba(20,20,30,.12); }
.nav-cta{ background:var(--red); color:#fff !important; padding:9px 20px; border-radius:999px; font-weight:700; }
.nav-cta:hover{ background:var(--red-dark); transform:translateY(-4px); box-shadow:0 12px 22px rgba(226,35,26,.32); }
.nav-external{ padding:8px 18px; border:2px solid var(--red); border-radius:999px; color:var(--red) !important; font-weight:700; }
.nav-external:hover{ background:var(--red); color:#fff !important; transform:translateY(-4px); box-shadow:0 12px 22px rgba(226,35,26,.28); }

.nav-toggle{ display:none; flex-direction:column; gap:5px; width:44px; height:44px;
  background:none; border:none; cursor:pointer; align-items:center; justify-content:center; }
.nav-toggle span{ width:24px; height:2px; background:var(--ink); border-radius:2px; transition:.3s; }
.nav-toggle.open span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2){ opacity:0; }
.nav-toggle.open span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero{ position:relative; min-height:88vh; display:flex; align-items:center; color:#fff; overflow:hidden; }
.hero-media{ position:absolute; inset:0; z-index:0; background:#111; }
.hero-img,.hero-video{ width:100%; height:100%; object-fit:cover; }
/* 動画2枚を重ねてクロスフェード */
.hero-video{ position:absolute; inset:0; }
.hero-flag{ z-index:1; }                       /* 下レイヤー: フラッグ */
.hero-truck{ z-index:2; opacity:1; transition:opacity 1.2s ease; } /* 上レイヤー: トラック */
.hero-truck.is-faded{ opacity:0; }             /* 終了後フェードアウト */
.hero-overlay{ position:absolute; inset:0; z-index:3;
  background:linear-gradient(110deg, rgba(18,18,22,.82) 0%, rgba(18,18,22,.5) 55%, rgba(226,35,26,.4) 100%); }
.hero-inner{ position:relative; z-index:1; padding-top:var(--header-h); }
.hero-eyebrow{ font-family:"Oswald",sans-serif; letter-spacing:.28em; font-size:13px; margin-bottom:18px; }
.hero-title{ font-size:clamp(34px,7vw,72px); font-weight:900; line-height:1.15; margin-bottom:22px; }
.hero-lead{ font-size:clamp(14px,1.6vw,17px); color:rgba(255,255,255,.9); margin-bottom:32px; }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; }

/* ============================================================
   SECTION commons
   ============================================================ */
.section{ padding:72px 0; }
.section-head{ margin-bottom:44px; }
.section-head.center{ text-align:center; }
.section-tag{ font-family:"Oswald",sans-serif; letter-spacing:.28em; font-size:13px; color:var(--red); font-weight:600; display:inline-block; margin-bottom:10px; }
.section-title{ font-size:clamp(24px,4vw,40px); font-weight:900; line-height:1.35; }
.section-sub{ margin-top:14px; color:var(--ink-soft); }
.section-head.light .section-title,
.section-head.light .section-sub{ color:#fff; }

/* ---------- CONCEPT ---------- */
.concept-grid{ display:grid; grid-template-columns:1fr; gap:32px; }
.concept-catch{ font-size:clamp(20px,2.4vw,28px); font-weight:900; color:var(--ink); line-height:1.5; margin-bottom:22px !important;
  padding-left:18px; border-left:4px solid var(--red); }
.concept-body p{ margin-bottom:18px; color:var(--ink-soft); }
.concept-body strong{ color:var(--red); font-weight:700; }
.concept-figure{ border-radius:var(--radius); overflow:hidden; aspect-ratio:16/10; }
.concept-figure img{ width:100%; height:100%; object-fit:cover; }
/* ---- concept slideshow ---- */
.concept-slider{ position:relative; }
.concept-slider .slide{ position:absolute; inset:0; opacity:0; transition:opacity 1s ease; }
.concept-slider .slide.is-active{ opacity:1; }
.slider-dots{ position:absolute; left:0; right:0; bottom:14px; z-index:2; display:flex; gap:8px; justify-content:center; }
.slider-dots button{ width:9px; height:9px; padding:0; border:0; border-radius:999px; cursor:pointer;
  background:rgba(255,255,255,.55); box-shadow:0 1px 4px rgba(0,0,0,.35); transition:background .3s, width .3s; }
.slider-dots button.is-active{ width:22px; background:var(--red); }

/* ---------- SERVICE ---------- */
.service{ background:var(--bg-alt); }
.service-grid{ display:grid; grid-template-columns:1fr; gap:24px; }
.service-card{ position:relative; background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  padding:38px 30px 32px; overflow:hidden; transition:transform .35s var(--ease), box-shadow .35s, border-color .35s; }
.service-card::before{ content:""; position:absolute; left:0; top:0; width:100%; height:4px; background:var(--red);
  transform:scaleX(0); transform-origin:left; transition:transform .4s var(--ease); }
.service-card:hover{ transform:translateY(-8px); box-shadow:var(--shadow); border-color:transparent; }
.service-card:hover::before{ transform:scaleX(1); }
.service-no{ font-family:"Oswald",sans-serif; font-size:44px; font-weight:700; line-height:1; color:var(--red);
  display:block; margin-bottom:16px; }
.service-card h3{ font-size:21px; font-weight:700; margin-bottom:12px; }
.service-card p{ font-size:14.5px; color:var(--ink-soft); margin-bottom:20px; }
.service-tags{ list-style:none; display:flex; flex-wrap:wrap; gap:8px; }
.service-tags li{ font-size:12px; color:var(--red); background:var(--red-soft); border-radius:999px; padding:5px 12px; font-weight:500; }

/* ---------- STRENGTH ---------- */
.strength{ background:var(--ink); color:#fff; }
.strength-grid{ display:grid; grid-template-columns:1fr; gap:24px; }
.strength-item{ border:1px solid rgba(255,255,255,.15); border-radius:var(--radius); padding:32px 28px; }
.strength-no{ font-family:"Oswald",sans-serif; font-size:40px; color:var(--red); display:block; margin-bottom:12px; }
.strength-item h3{ font-size:19px; margin-bottom:10px; }
.strength-item p{ color:rgba(255,255,255,.78); font-size:15px; }

/* ---------- BRAND BAND ---------- */
.brand-band{ position:relative; min-height:60vh; display:flex; align-items:center; overflow:hidden; color:#fff; }
.brand-band-slides{ position:absolute; inset:0; z-index:0; }
.brand-band-img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
  opacity:0; transition:opacity 1.2s ease; }
.brand-band-img.is-active{ opacity:1; }
.brand-band-overlay{ position:absolute; inset:0; z-index:1;
  background:linear-gradient(90deg, rgba(15,15,18,.78) 0%, rgba(15,15,18,.35) 60%, rgba(226,35,26,.25) 100%); }
.brand-band-inner{ position:relative; z-index:2; }
.brand-band-eyebrow{ font-family:"Oswald",sans-serif; letter-spacing:.26em; font-size:13px; color:var(--red); margin-bottom:16px; }
.brand-band-title{ font-size:clamp(26px,4.5vw,46px); font-weight:900; line-height:1.4; }

/* ---------- COMPANY ---------- */
.company-inner{ max-width:720px; margin-inline:auto; }
.company-table{ width:100%; border-collapse:collapse; }
.company-table th,.company-table td{ text-align:left; vertical-align:top; padding:16px 4px; border-bottom:1px solid var(--line); font-size:15px; }
.company-table th{ width:120px; font-weight:700; }
.company-table td{ color:var(--ink-soft); }
.company-table a{ color:var(--red); font-weight:600; }

/* ---------- RECRUIT ---------- */
.recruit{ position:relative; overflow:hidden; color:#fff; padding:96px 0; }
.recruit-bg{ position:absolute; inset:0; z-index:0;
  background:url("../assets/img/photo-04.jpg") center/cover no-repeat; }
.recruit-overlay{ position:absolute; inset:0; z-index:1;
  background:linear-gradient(115deg, rgba(184,24,16,.92) 0%, rgba(15,15,18,.86) 60%, rgba(15,15,18,.9) 100%); }
.recruit-inner{ position:relative; z-index:2; display:grid; grid-template-columns:1fr; gap:40px; align-items:center; }
.recruit-lead .section-tag{ color:#fff; }
.recruit-title{ font-size:clamp(30px,5vw,52px); font-weight:900; line-height:1.2; margin:6px 0 20px; }
.recruit-copy{ font-size:16px; line-height:2; color:rgba(255,255,255,.9); margin-bottom:30px; }
.recruit-actions{ display:flex; gap:14px; flex-wrap:wrap; }
.recruit-card{ background:#fff; color:var(--ink); border-radius:var(--radius); padding:32px 30px; box-shadow:var(--shadow); }
.recruit-card h3{ font-size:20px; font-weight:800; margin-bottom:16px; padding-bottom:14px; border-bottom:2px solid var(--red); }
.recruit-table{ width:100%; border-collapse:collapse; }
.recruit-table th,.recruit-table td{ text-align:left; vertical-align:top; padding:13px 2px; border-bottom:1px solid var(--line); font-size:14.5px; }
.recruit-table th{ width:96px; font-weight:700; white-space:nowrap; }
.recruit-table td{ color:var(--ink-soft); }
.recruit-table a{ color:var(--red); font-weight:600; }

/* ---------- CONTACT ---------- */
.contact{ background:var(--ink); color:#fff; }
.contact-grid{ display:grid; grid-template-columns:1fr; gap:36px; }
.contact-label{ font-size:14px; color:rgba(255,255,255,.7); }
.contact-tel{ font-family:"Oswald",sans-serif; font-size:40px; font-weight:700; color:#fff; display:block; margin:6px 0 10px; }
.contact-sub{ font-size:14px; color:rgba(255,255,255,.75); }
.contact-sub a{ color:#fff; }
.contact-form label{ display:block; font-size:14px; margin-bottom:16px; color:rgba(255,255,255,.85); }
.req{ font-size:11px; background:var(--red); color:#fff; border-radius:4px; padding:2px 7px; margin-left:6px; }
.contact-form input,.contact-form textarea{
  width:100%; margin-top:8px; padding:13px 15px; border-radius:10px;
  border:1px solid rgba(255,255,255,.18); background:rgba(255,255,255,.05); color:#fff;
  font-family:inherit; font-size:15px;
}
.contact-form input:focus,.contact-form textarea:focus{ outline:none; border-color:var(--red); }
.contact-form input::placeholder,.contact-form textarea::placeholder{ color:rgba(255,255,255,.4); }
.form-note{ text-align:center; margin-top:12px; font-size:14px; min-height:18px; }
.form-note.ok{ color:#6ee7a8; }
.form-note.err{ color:#ff8a80; }

/* ---------- FOOTER ---------- */
.site-footer{ background:#0f0f12; color:rgba(255,255,255,.7); padding:52px 0 0; }
.footer-inner{ display:grid; grid-template-columns:1fr; gap:28px; padding-bottom:36px; }
.footer-logo{ height:34px; margin-bottom:12px; }
.footer-brand .brand-text{ color:#fff; }
.footer-brand p{ font-size:14px; margin-top:8px; }
.footer-info p{ font-size:14px; margin-bottom:6px; }
.footer-info a{ color:#fff; }
.footer-external{ display:inline-block; margin-top:6px; color:var(--red) !important; font-weight:700;
  border-bottom:1px solid transparent; transition:border-color .25s; }
.footer-external:hover{ border-color:var(--red); }
.footer-bottom{ border-top:1px solid rgba(255,255,255,.1); padding:18px 0; text-align:center; }
.footer-bottom p{ font-size:12.5px; color:rgba(255,255,255,.5); }

/* ============================================================
   RESPONSIVE — breakpoints
   ============================================================ */

/* ≥ 900px : tablet landscape / small desktop */
@media (min-width:900px){
  :root{ --gutter:32px; }
  .concept-grid{ grid-template-columns:1.1fr .9fr; align-items:center; gap:48px; }
  .service-grid{ grid-template-columns:repeat(3,1fr); }
  .strength-grid{ grid-template-columns:repeat(3,1fr); }
  .recruit-inner{ grid-template-columns:1.1fr .9fr; gap:56px; }
  .contact-grid{ grid-template-columns:.9fr 1.1fr; align-items:start; }
  .footer-inner{ grid-template-columns:1.4fr 1fr; }
}

/* ≥ 1080px : desktop */
@media (min-width:1080px){
  .section{ padding:100px 0; }
}

/* ≤ 1023px : mobile nav（ボタンが収まらない幅ではハンバーガーに）*/
@media (max-width:1023px){
  .nav-toggle{ display:flex; }
  .global-nav{
    position:fixed; inset:var(--header-h) 0 auto 0;
    background:#fff; border-bottom:1px solid var(--line); box-shadow:var(--shadow);
    transform:translateY(-12px); opacity:0; visibility:hidden; pointer-events:none;
    transition:opacity .3s ease, transform .3s ease, visibility .3s ease;
  }
  .global-nav.open{ transform:translateY(0); opacity:1; visibility:visible; pointer-events:auto; }
  .global-nav ul{ flex-direction:column; align-items:stretch; gap:0; padding:8px 0; }
  .global-nav li{ border-bottom:1px solid var(--line); }
  .global-nav a{ display:block; padding:14px var(--gutter); }
  /* モバイルではボタンの浮き上がり/枠を無効化（縦並びをすっきり） */
  .global-nav a:not(.nav-cta):not(.nav-external){ border-radius:0; border:0; background:transparent; }
  .global-nav a:hover{ transform:none !important; box-shadow:none !important; background:transparent; border-color:transparent; }
  .nav-external{ margin:8px var(--gutter); text-align:center; }
  .nav-cta{ margin:8px var(--gutter); text-align:center; }
}