/* Black Laguna Studio — モノクロ・水面の反射・絞り（アイコンの世界観に合わせる） */
:root {
  --bg: #000;
  --bg-2: #07080a;
  --fg: #f2f3f5;
  --sub: #9aa0a8;
  --dim: #5d636b;
  --line: rgba(255, 255, 255, .1);
  --line-strong: rgba(255, 255, 255, .22);
  --glow: rgba(255, 255, 255, .55);
  --silver: linear-gradient(180deg, #ffffff 0%, #d9dce1 45%, #8e949c 100%);
  --latin: "Space Grotesk", "Zen Kaku Gothic New", sans-serif;
  --jp: "Zen Kaku Gothic New", "Hiragino Sans", sans-serif;
  --gutter: clamp(20px, 5vw, 72px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 400 16px/1.9 var(--jp);
  letter-spacing: .02em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
::selection { background: #fff; color: #000; }

/* ---- ヘッダー ---- */
.nav {
  position: fixed; inset: 0 0 auto; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 16px var(--gutter);
  background: linear-gradient(180deg, rgba(0, 0, 0, .85), rgba(0, 0, 0, 0));
  backdrop-filter: blur(6px);
}
.brand { display: flex; align-items: center; gap: 12px; font: 500 13px/1 var(--latin); letter-spacing: .28em; }
.brand img { border-radius: 50%; }
.nav nav { display: flex; align-items: center; gap: clamp(14px, 2.4vw, 32px); font: 400 13px/1 var(--latin); letter-spacing: .12em; }
.nav nav a { color: var(--sub); transition: color .3s; }
.nav nav a:hover { color: var(--fg); }
.nav .nav-cta { color: var(--fg); border: 1px solid var(--line-strong); border-radius: 99px; padding: 9px 16px; }
.nav .nav-cta:hover { background: #fff; color: #000; }

/* ---- ファーストビュー ---- */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid; align-items: center;
  padding: 120px var(--gutter) 96px;
  isolation: isolate;
}
.hero-visual {
  position: absolute; z-index: -1;
  right: max(-8vw, -120px); top: 50%;
  width: min(92vh, 62vw); transform: translateY(-50%);
  -webkit-mask-image: radial-gradient(closest-side, #000 62%, transparent 100%);
  mask-image: radial-gradient(closest-side, #000 62%, transparent 100%);
  animation: rise 2.4s cubic-bezier(.2, .7, .1, 1) both;
}
.hero-visual img { width: 100%; filter: contrast(1.05); }
/* 水平線の光 */
.hero::after {
  content: ""; position: absolute; z-index: -1; left: 0; right: 0; top: 58%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .0) 20%, var(--glow) 62%, rgba(255, 255, 255, .0) 92%);
  opacity: .5;
}
.hero-copy { max-width: 980px; animation: fade 1.6s .2s ease both; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin: 0 0 28px; color: var(--sub); font: 400 12px/1 var(--latin); letter-spacing: .24em; text-transform: uppercase; }
.dot { width: 6px; height: 6px; border-radius: 50%; background: #fff; box-shadow: 0 0 12px var(--glow); animation: pulse 2.8s ease-in-out infinite; }
h1 {
  margin: 0;
  font: 300 clamp(44px, 8.2vw, 124px)/1 var(--latin);
  letter-spacing: -.035em;
}
h1 .line { display: block; width: max-content; max-width: 100%; white-space: nowrap; padding-right: .08em; background: var(--silver); -webkit-background-clip: text; background-clip: text; color: transparent; padding-bottom: .06em; }
h1 em { font-style: normal; font-weight: 300; color: var(--dim); -webkit-text-fill-color: var(--dim); margin-right: .1em; }
.lead { margin: 36px 0 0; color: var(--sub); font-size: clamp(15px, 1.6vw, 18px); line-height: 2.1; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 44px; }
.scroll-cue { position: absolute; left: var(--gutter); bottom: 32px; width: 1px; height: 56px; background: var(--line); overflow: hidden; }
.scroll-cue span { position: absolute; inset: 0; background: #fff; animation: drip 2.4s ease-in-out infinite; }

/* ---- ボタン ---- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 26px; border: 1px solid var(--line-strong); border-radius: 99px;
  font: 500 14px/1 var(--latin); letter-spacing: .08em;
  transition: background .3s, color .3s, border-color .3s, box-shadow .3s;
}
.btn:hover { border-color: #fff; box-shadow: 0 0 24px rgba(255, 255, 255, .15); }
.btn.primary { background: #fff; color: #000; border-color: #fff; }
.btn.primary:hover { background: transparent; color: #fff; }
.btn.big { padding: 20px 34px; font-size: 16px; margin-top: 12px; }

/* ---- セクション共通 ---- */
.section { padding: clamp(96px, 14vw, 180px) var(--gutter) 0; max-width: 1360px; margin: 0 auto; }
.label { display: flex; align-items: center; gap: 14px; margin: 0 0 40px; color: var(--sub); font: 400 12px/1 var(--latin); letter-spacing: .3em; text-transform: uppercase; }
.label span { color: var(--fg); }
.label::after { content: ""; flex: 1; height: 1px; background: var(--line); }
h2 { margin: 0 0 48px; font: 500 clamp(30px, 4.4vw, 56px)/1.35 var(--jp); letter-spacing: .02em; }
h3 { margin: 0; font: 500 24px/1.3 var(--latin); letter-spacing: -.01em; }
p { margin: 0 0 1.2em; }
.quiet { color: var(--sub); }

/* ---- About ---- */
.about-grid, .photo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 96px); align-items: start; }
.about-grid h2, .photo-grid h2 { font-size: clamp(28px, 3.4vw, 46px); }
.about-grid p, .photo-grid p { color: #c9cdd3; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); margin: clamp(64px, 9vw, 120px) 0 0; border-top: 1px solid var(--line); }
.stats > div { padding: 32px 24px 0 0; border-right: 1px solid var(--line); }
.stats > div:last-child { border-right: 0; }
.stats > div + div { padding-left: 24px; }
.stats dt { display: flex; align-items: baseline; gap: 8px; }
.stats b { font: 300 clamp(44px, 5.4vw, 76px)/1 var(--latin); letter-spacing: -.04em; background: var(--silver); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stats small { color: var(--sub); font: 400 13px/1 var(--latin); letter-spacing: .1em; }
.stats dd { margin: 16px 0 0; color: var(--sub); font-size: 14px; line-height: 1.8; }

/* ---- Services ---- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.card {
  position: relative; padding: clamp(28px, 4vw, 48px); background: var(--bg);
  transition: background .5s;
}
.card::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .5s;
  background: radial-gradient(600px circle at 0% 0%, rgba(255, 255, 255, .07), transparent 60%);
}
.card:hover { background: var(--bg-2); }
.card:hover::before { opacity: 1; }
.card-no { margin: 0 0 40px; color: var(--dim); font: 400 13px/1 var(--latin); letter-spacing: .1em; }
.card h3 { margin-bottom: 16px; font-size: clamp(24px, 2.6vw, 32px); }
.card > p:not(.card-no) { color: var(--sub); font-size: 15px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0 0; padding: 0; list-style: none; }
.tags li { padding: 4px 12px; border: 1px solid var(--line); border-radius: 99px; color: var(--sub); font-size: 12px; }

/* ---- Works ---- */
.work {
  display: grid; grid-template-columns: auto 1fr auto; gap: clamp(20px, 3vw, 40px); align-items: center;
  padding: clamp(24px, 4vw, 44px); border: 1px solid var(--line); border-radius: 20px;
  background: linear-gradient(135deg, rgba(255, 255, 255, .04), rgba(255, 255, 255, 0) 50%);
  transition: border-color .4s, transform .4s, box-shadow .4s;
}
.work:hover { border-color: var(--line-strong); transform: translateY(-3px); box-shadow: 0 20px 60px rgba(0, 0, 0, .6), 0 0 0 1px rgba(255, 255, 255, .04); }
.work img { width: clamp(64px, 9vw, 96px); border-radius: 50%; }
.work h3 { font-size: clamp(28px, 3.4vw, 40px); margin: 6px 0 10px; }
.work p { margin: 0; color: var(--sub); font-size: 15px; }
.work-kind { font: 400 12px/1.4 var(--latin) !important; letter-spacing: .14em; text-transform: uppercase; color: var(--dim) !important; }
.arrow { font: 300 32px/1 var(--latin); color: var(--sub); transition: transform .4s, color .4s; }
.work:hover .arrow { transform: translateX(6px); color: #fff; }
.work + .work { margin-top: 16px; }
.works-note { margin-top: 24px; color: var(--sub); font-size: 14px; }

/* ---- Photography ---- */
.photo { position: relative; }

/* 撮影でお受けできること */
.offer { margin: 28px 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.offer li { display: flex; align-items: baseline; gap: 20px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.offer b { min-width: 7.5em; font: 400 18px/1.4 var(--latin); letter-spacing: .02em; }
.offer span { color: var(--sub); font-size: 14px; }
.small { font-size: 13px; line-height: 1.9; }

/* 写真作品: 大きな1枚と、縦横の写真を切らずに並べる段組み */
.feature { margin: 56px 0 16px; }
.feature img, .ph img { width: 100%; transition: transform 1.4s cubic-bezier(.2, .7, .1, 1), filter .8s; }
.feature a, .ph a { display: block; overflow: hidden; border-radius: 4px; background: var(--bg-2); cursor: zoom-in; }
.feature:hover img, .ph:hover img { transform: scale(1.03); }
.gallery { columns: 3; column-gap: 16px; }
.ph { margin: 0 0 16px; break-inside: avoid; }
.ph img { filter: brightness(.9); }
.ph:hover img { filter: none; }
.photo-credit { margin: 8px 0 0; color: var(--dim); font: 400 11px/1 var(--latin); letter-spacing: .2em; text-transform: uppercase; text-align: right; }

/* 写真を大きく表示する画面 */
.lightbox { width: 100vw; height: 100vh; max-width: none; max-height: none; margin: 0; padding: 0; border: 0; background: rgba(0, 0, 0, .94); }
.lightbox[open] { display: grid; place-items: center; animation: fade .4s ease both; }
.lightbox::backdrop { background: transparent; }
.lightbox img { max-width: calc(100vw - 32px); max-height: calc(100vh - 96px); width: auto; height: auto; box-shadow: 0 30px 80px rgba(0, 0, 0, .8); }
.lightbox button { position: absolute; border: 1px solid var(--line-strong); border-radius: 99px; background: rgba(0, 0, 0, .5); color: var(--fg); font: 300 20px/1 var(--latin); width: 48px; height: 48px; cursor: pointer; }
.lightbox button:hover { background: #fff; color: #000; }
.lb-close { top: 16px; right: 16px; }
.lb-prev { left: 16px; top: 50%; translate: 0 -50%; }
.lb-next { right: 16px; top: 50%; translate: 0 -50%; }

/* ---- Contact ---- */
.contact { position: relative; isolation: isolate; padding-bottom: clamp(96px, 12vw, 160px); }
/* 背景に水面の写真をうっすら敷く（上下は黒に溶かす） */
.contact::before {
  content: ""; position: absolute; z-index: -1; inset: 0 calc(50% - 50vw);
  background: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, .55) 35%, rgba(0, 0, 0, .7) 80%, #000 100%), url("/assets/photos/water-m.webp") center / cover;
  opacity: .9;
}
.contact h2 { font: 300 clamp(40px, 7.4vw, 104px)/1.02 var(--latin); letter-spacing: -.04em; background: var(--silver); -webkit-background-clip: text; background-clip: text; color: transparent; }
.contact p { color: var(--sub); }

/* ---- フッター ---- */
.footer {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px;
  padding: 28px var(--gutter); border-top: 1px solid var(--line);
  color: var(--dim); font: 400 12px/1.6 var(--latin); letter-spacing: .08em;
}
.footer p { margin: 0; }
.footer span { font-family: var(--jp); }
.footer a:hover { color: var(--fg); }

/* ---- 表示のアニメーション（JavaScript が動くときだけ隠してから出す） ---- */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity 1s ease, transform 1s cubic-bezier(.2, .7, .1, 1); }
.js .reveal.shown { opacity: 1; transform: none; }
@keyframes rise { from { opacity: 0; transform: translateY(-46%) scale(1.04); } to { opacity: 1; transform: translateY(-50%); } }
@keyframes fade { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@keyframes pulse { 50% { opacity: .35; } }
@keyframes drip { 0% { transform: translateY(-100%); } 60%, 100% { transform: translateY(100%); } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
}

/* ---- スマートフォン・タブレット ---- */
@media (max-width: 900px) {
  .nav nav a:not(.nav-cta) { display: none; }
  .hero { align-items: end; padding-bottom: 120px; }
  .hero-visual { right: 50%; top: 96px; width: min(560px, 118vw); transform: translateX(50%); opacity: .55; animation-name: rise-mobile; }
  .hero::after { top: auto; bottom: 42%; }
  .about-grid, .photo-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .stats > div, .stats > div + div { display: flex; align-items: center; gap: 24px; padding: 24px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .stats dt { min-width: 7.5em; }
  .stats dd { margin: 0; }
  .cards { grid-template-columns: 1fr; }
  .gallery { columns: 2; column-gap: 10px; }
  .ph { margin-bottom: 10px; }
  .feature { margin-bottom: 10px; }
}
@media (max-width: 560px) {
  .brand span { font-size: 11px; letter-spacing: .2em; }
  .work { grid-template-columns: 1fr; }
  .arrow { display: none; }
}
@keyframes rise-mobile { from { opacity: 0; transform: translateX(50%) scale(1.04); } to { opacity: .55; transform: translateX(50%); } }