/* ============================================================
   おきラボ株式会社 — サイトスタイル
   トークン: 隠岐の海と土地からとった配色 / 明朝×ゴシックの組み合わせ
   シグネチャー: 隠岐諸島(4島)のシルエットライン
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Shippori+Mincho:wght@500;700&family=Zen+Kaku+Gothic+New:wght@400;500;700&display=swap');

:root{
  --sea-deep:   #1E3A4A;
  --sea-mid:    #3D6B7D;
  --sand:       #EDE6D3;
  --sand-light: #F6F2E7;
  --clay:       #A15C3E;
  --pasture:    #4F6B47;
  --ink:        #2B2620;
  --oyster:     #C9C2B4;
  --white:      #FFFDF8;

  --serif: "Shippori Mincho", serif;
  --sans:  "Zen Kaku Gothic New", sans-serif;

  --max-w: 1120px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background:var(--sand-light);
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4{
  font-family:var(--serif);
  font-weight:700;
  line-height:1.5;
  margin:0 0 .6em;
}
p{ margin:0 0 1em; }
ul{ margin:0; padding:0; list-style:none; }
.container{
  max-width:var(--max-w);
  margin:0 auto;
  padding:0 24px;
}

/* prefers-reduced-motion */
@media (prefers-reduced-motion: reduce){
  *{ animation:none !important; transition:none !important; scroll-behavior:auto !important; }
}

/* ---------- 島シルエット (signature motif) ---------- */
.archipelago{
  display:block;
  width:100%;
  height:auto;
}
.archipelago path{
  fill:none;
  stroke:currentColor;
  stroke-width:2;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.archipelago.filled path{ fill:currentColor; stroke:none; }

.divider{
  color:var(--oyster);
  margin:0 auto;
  max-width:640px;
  padding:0 24px;
}
.divider.dark{ color:rgba(255,253,248,.35); }

/* ---------- header / nav ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(246,242,231,.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--oyster);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 24px;
  max-width:var(--max-w); margin:0 auto;
}
.logo{
  display:flex; align-items:center;
  font-family:var(--serif); font-weight:700; font-size:1.25rem;
  letter-spacing:.04em;
  color:var(--sea-deep);
}
.logo span{ color:var(--clay); }
.logo img{ height:52px; width:auto; display:block; }
.nav-links{ display:flex; gap:32px; }
.nav-links a{
  display:block;
  font-size:.92rem; letter-spacing:.03em; color:var(--ink);
  position:relative; padding:4px 0;
  line-height:1.4;
}
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:0; height:2px; width:0;
  background:var(--clay); transition:width .25s ease;
}
.nav-links a:hover::after, .nav-links a.active::after{ width:100%; }
.nav-toggle{ display:none; background:none; border:none; cursor:pointer; padding:8px; }
.nav-toggle span{ display:block; width:22px; height:2px; background:var(--ink); margin:5px 0; }

@media (max-width:760px){
  .nav-toggle{ display:block; }
  .nav-links{
    position:absolute; top:100%; left:0; right:0;
    background:var(--sand-light);
    flex-direction:column; gap:0;
    border-bottom:1px solid var(--oyster);
    max-height:0; overflow:hidden;
    transition:max-height .3s ease;
  }
  .nav-links.open{ max-height:320px; }
  .nav-links a{ padding:16px 24px; border-top:1px solid var(--oyster); }
  .nav-links a::after{ display:none; }
}

/* ---------- hero ---------- */
.hero{
  position:relative;
  background:linear-gradient(180deg, var(--sea-deep) 0%, var(--sea-mid) 100%);
  color:var(--white);
  padding:96px 0 0;
  overflow:hidden;
}
.hero-inner{
  max-width:var(--max-w); margin:0 auto; padding:0 24px 64px;
  position:relative; z-index:2;
}
.eyebrow{
  font-size:.82rem; letter-spacing:.16em;
  color:var(--sand);
  margin-bottom:20px;
  display:inline-block;
  border-bottom:1px solid rgba(255,253,248,.4);
  padding-bottom:6px;
}
.hero h1{
  font-size:clamp(2rem, 5vw, 3.2rem);
  color:var(--white);
  max-width:14ch;
}
.hero p.lead{
  font-size:1.05rem; max-width:46ch; color:rgba(255,253,248,.85);
}
.hero .archipelago{ color:rgba(255,253,248,.5); margin-top:48px; }
.hero .archipelago.tide{ color:rgba(255,253,248,.9); }

/* ---------- photo hero (secondary pages, 風と土と風) ---------- */
.hero-photo{
  position:relative;
  height:min(50vh, 430px);
  min-height:320px;
  overflow:hidden;
  color:var(--white);
  background:var(--sea-deep);
}
.hero-photo-bg{
  position:absolute; inset:0;
  background-size:contain;
  background-position:center;
  background-repeat:no-repeat;
  z-index:0;
}
.hero-photo-overlay{
  position:absolute; inset:0;
  background:rgba(20,30,36,.42);
  z-index:1;
}
.hero-photo-inner{
  position:relative; z-index:2;
  height:100%;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  text-align:center;
  padding:0 24px;
}
.hero-photo-inner .eyebrow{
  color:var(--white);
  border-color:rgba(255,253,248,.5);
}
.hero-photo-inner h1{
  color:var(--white);
  font-size:clamp(1.5rem, 3.4vw, 2.1rem);
  margin:0;
}
@media (max-width:600px){
  .hero-photo{ height:min(38vh, 300px); min-height:240px; }
}

/* 写真ヒーロー直後のセクションは余白を詰めて間延びを防ぐ */
.hero-photo + section{ padding-top:48px; }
.hero-photo + section .section-head{ margin-bottom:36px; }

/* ---------- 事業内容ページ等の写真グリッド ---------- */
.photo-grid{ display:grid; gap:16px; margin-top:32px; }
.photo-grid img{ width:100%; height:220px; object-fit:cover; border-radius:2px; display:block; }
.photo-grid.cols-2{ grid-template-columns:repeat(2,1fr); }
.photo-grid.cols-3{ grid-template-columns:repeat(3,1fr); }
.photo-grid.cols-4{ grid-template-columns:repeat(4,1fr); }
@media (max-width:700px){
  .photo-grid.cols-3, .photo-grid.cols-4{ grid-template-columns:repeat(2,1fr); }
}
.photo-wide{ width:100%; height:340px; object-fit:cover; border-radius:2px; margin-top:32px; display:block; }
@media (max-width:600px){
  .photo-wide{ height:220px; }
}

.cta-row{ display:flex; gap:16px; margin-top:32px; flex-wrap:wrap; }
.btn{
  display:inline-block;
  padding:13px 28px;
  border-radius:2px;
  font-size:.92rem; letter-spacing:.03em;
  border:1px solid transparent;
  transition:transform .2s ease, background .2s ease, border-color .2s ease;
}
.btn:hover{ transform:translateY(-2px); }
.btn-primary{ background:var(--clay); color:var(--white); }
.btn-primary:hover{ background:#8c4c31; }
.btn-outline{ border-color:rgba(255,253,248,.6); color:var(--white); }
.btn-outline:hover{ border-color:var(--white); }
.btn-outline.on-light{ border-color:var(--sea-deep); color:var(--sea-deep); }
.btn-outline.on-light:hover{ background:var(--sea-deep); color:var(--white); }

/* ---------- hero slider (Swiper.js, fade + crossFade) ---------- */
.hero-slider{
  position:relative;
  height:min(80vh, 720px);
  min-height:480px;
  overflow:hidden;
  color:var(--white);
  background:var(--sea-deep);
}
.hero-swiper{ position:absolute !important; inset:0 !important; width:100%; height:100%; }
.hero-swiper .swiper-slide{
  position:relative;
  display:flex; align-items:center;
  padding-bottom:96px;
  overflow:hidden;
}
.slide-bg{
  position:absolute; inset:0;
  background-size:contain;
  background-position:center center;
  background-repeat:no-repeat;
  background-color:var(--sea-deep);
  z-index:0;
}
.slide-overlay{
  position:absolute; inset:0;
  background:linear-gradient(180deg,
    rgba(20,30,36,0) 0%,
    rgba(20,30,36,0) 18%,
    rgba(20,30,36,.5) 55%,
    rgba(20,30,36,.72) 100%);
  z-index:1;
}
.slide-caption{
  position:relative; z-index:2;
  max-width:var(--max-w);
  margin:0 auto; width:100%;
  padding:0 24px;
}
.slide-caption h1{ color:var(--white); max-width:16ch; font-size:clamp(1.8rem, 4.4vw, 3rem); text-shadow:0 2px 16px rgba(0,0,0,.35); }
.slide-caption .lead{ max-width:44ch; color:rgba(255,253,248,.9); text-shadow:0 1px 10px rgba(0,0,0,.3); }
.slide-caption .eyebrow{ text-shadow:0 1px 8px rgba(0,0,0,.3); }

.hero-swiper .swiper-pagination{
  bottom:20px !important;
  z-index:3;
}
.hero-swiper .swiper-pagination-bullet{
  width:9px; height:9px;
  background:transparent;
  opacity:1;
  border:1px solid rgba(255,253,248,.8);
}
.hero-swiper .swiper-pagination-bullet-active{ background:var(--white); }

.hero-swiper .swiper-button-prev,
.hero-swiper .swiper-button-next{
  width:44px; height:44px;
  background:rgba(0,0,0,.25);
  border:1px solid rgba(255,253,248,.5);
  border-radius:50%;
  color:var(--white);
  z-index:3;
}
.hero-swiper .swiper-button-prev:hover,
.hero-swiper .swiper-button-next:hover{ background:rgba(0,0,0,.45); }
.hero-swiper .swiper-button-prev::after,
.hero-swiper .swiper-button-next::after{ font-size:1.1rem; font-weight:700; }
.hero-swiper .swiper-button-prev{ left:20px; }
.hero-swiper .swiper-button-next{ right:20px; }

.hero-slider .archipelago{
  position:absolute; bottom:0; left:0; z-index:2;
  color:rgba(30,58,74,.55);
}

@media (max-width:600px){
  .hero-slider{ height:min(62vh, 540px); }
  .hero-swiper .swiper-button-prev,
  .hero-swiper .swiper-button-next{ width:36px; height:36px; }
}

/* ---------- sections ---------- */
section{ padding:88px 0; }
.section-head{ max-width:640px; margin-bottom:56px; }
.section-head .eyebrow{ color:var(--clay); border-color:var(--oyster); }
.section-head.on-dark .eyebrow{ color:var(--sand); border-color:rgba(255,253,248,.4); }
.section-head h2{ font-size:clamp(1.6rem, 3.4vw, 2.2rem); color:var(--sea-deep); }
.section-head.on-dark h2{ color:var(--white); }

.bg-sand{ background:var(--sand); }
.bg-deep{ background:var(--sea-deep); color:var(--white); }
.bg-deep h2, .bg-deep h3{ color:var(--white); }
.bg-white{ background:var(--white); }

/* card grid */
.grid{ display:grid; gap:28px; }
.grid.cols-3{ grid-template-columns:repeat(3,1fr); }
.grid.cols-2{ grid-template-columns:repeat(2,1fr); }
@media (max-width:900px){
  .grid.cols-3, .grid.cols-2{ grid-template-columns:1fr; }
}

.card{
  background:var(--white);
  border:1px solid var(--oyster);
  padding:32px 28px;
  border-radius:2px;
  transition:border-color .2s ease, transform .2s ease;
}
.card:hover{ border-color:var(--clay); transform:translateY(-3px); }
.card .card-photo{
  display:block;
  width:calc(100% + 56px);
  margin:-32px -28px 20px;
  height:160px;
  object-fit:cover;
  border-radius:2px 2px 0 0;
}
.card .num{
  font-family:var(--serif); font-size:.85rem; color:var(--clay);
  letter-spacing:.1em; margin-bottom:14px; display:block;
}
.card h3{ font-size:1.15rem; color:var(--sea-deep); margin-bottom:.5em; }
.card p{ font-size:.94rem; color:#4a453c; margin-bottom:0; }

/* stats row */
.stats{ display:flex; flex-wrap:wrap; gap:48px; margin-top:8px; }
.stat .value{
  font-family:var(--serif); font-size:2.2rem; color:var(--sea-deep);
  display:block; line-height:1;
}
.bg-deep .stat .value{ color:var(--sand); }
.stat .label{ font-size:.85rem; color:#5a5346; margin-top:8px; display:block; }
.bg-deep .stat .label{ color:rgba(255,253,248,.7); }
.stat img{
  width:64px; height:64px; object-fit:cover; border-radius:50%;
  display:block; margin-bottom:14px;
  border:2px solid rgba(255,253,248,.35);
}

/* quote / message block */
.message{
  border-left:3px solid var(--clay);
  padding-left:28px;
  max-width:680px;
}
.message p{ font-size:1.05rem; }
.message .signee{ font-size:1.15rem; color:var(--sea-deep); text-align:right; margin-top:24px; }

/* table (company profile) */
.profile-table{ width:100%; border-collapse:collapse; }
.profile-table tr{ border-bottom:1px solid var(--oyster); }
.profile-table tr:last-child{ border-bottom:none; }
.profile-table th,.profile-table td{
  text-align:left; padding:18px 0; vertical-align:top;
}
.profile-table th{
  width:180px; font-family:var(--serif); font-weight:500;
  color:var(--sea-deep); font-size:.95rem;
}
@media (max-width:600px){
  .profile-table th,.profile-table td{ display:block; padding:4px 0; }
  .profile-table th{ width:auto; padding-top:18px; }
}

/* timeline (沿革) */
.timeline{ border-left:2px solid var(--oyster); margin-left:6px; }
.timeline li{ position:relative; padding:0 0 32px 28px; }
.timeline li::before{
  content:""; position:absolute; left:-7px; top:4px;
  width:12px; height:12px; border-radius:50%;
  background:var(--clay);
}
.timeline .when{ font-family:var(--serif); color:var(--clay); font-size:.9rem; }
.timeline p{ margin:.3em 0 0; }

/* form */
.form-grid{ display:grid; gap:20px; max-width:560px; }
label{ font-size:.88rem; display:block; margin-bottom:6px; color:var(--sea-deep); }
input, textarea, select{
  width:100%; font-family:var(--sans); font-size:.95rem;
  padding:12px 14px; border:1px solid var(--oyster); border-radius:2px;
  background:var(--white); color:var(--ink);
}
input:focus, textarea:focus, select:focus{
  outline:2px solid var(--clay); outline-offset:1px;
}
textarea{ resize:vertical; min-height:140px; }
.field-note{ font-size:.82rem; color:#6b6455; margin-top:6px; }

/* footer */
footer{
  background:var(--sea-deep); color:rgba(255,253,248,.8);
  padding:56px 0 28px;
}
.footer-grid{
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:32px;
  padding-bottom:32px; border-bottom:1px solid rgba(255,253,248,.15);
}
.footer-logo{ font-family:var(--serif); color:var(--white); font-size:1.1rem; }
.footer-links{ display:flex; gap:24px; flex-wrap:wrap; }
.footer-links a:hover{ color:var(--white); }
.copyright{
  font-size:.8rem; padding-top:24px; color:rgba(255,253,248,.5);
}

/* reveal-on-scroll */
.reveal{ opacity:0; transform:translateY(18px); transition:opacity .7s ease, transform .7s ease; }
.reveal.is-visible{ opacity:1; transform:translateY(0); }

/* visible keyboard focus */
a:focus-visible, button:focus-visible{
  outline:2px solid var(--clay); outline-offset:2px;
}