/* UNITA STUDIO — 白基調の編集デザイン。色と書体はここの変数で管理する */
:root {
  --paper: #ffffff;
  --paper-2: #f6f4ef;
  --ink: #15130f;
  --ink-2: #4f4b44;
  --ink-3: #6f6a61;
  --line: #dcd8cf;
  --accent: #c2401c;
  --serif-en: 'Instrument Serif', 'Times New Roman', serif;
  --serif-ja: 'Shippori Mincho', 'Hiragino Mincho ProN', 'Yu Mincho', serif;
  --sans: 'Zen Kaku Gothic New', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
  --gutter: clamp(20px, 5vw, 72px);
  --nav-h: 72px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: var(--sans); font-size: 16px; line-height: 1.9; letter-spacing: .02em;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
h1, h2, h3, p, ol, ul, dl, dd, figure, fieldset { margin: 0; padding: 0; }
h1, h2, h3 { text-wrap: balance; }
p, dd, li { text-wrap: pretty; }
ol, ul { list-style: none; }
fieldset { border: 0; min-width: 0; }
a { color: inherit; }
img, video, svg { display: block; max-width: 100%; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 100; background: var(--ink); color: #fff; padding: 8px 14px; text-decoration: none; }
.skip:focus { top: 12px; }
.wrap { max-width: 1320px; margin: 0 auto; padding-inline: var(--gutter); }

/* ---- 動き：控えめなフェードのみ。JS が無い環境では最初から見える ---- */
.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity .9s var(--ease), transform .9s var(--ease); transition-delay: calc(var(--i, 0) * 90ms); }
.js .reveal.is-in { opacity: 1; transform: none; }

/* ---- ボタン・リンク ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .6em;
  min-height: 52px; padding: 0 30px; border: 1px solid var(--ink); border-radius: 999px;
  background: var(--ink); color: #fff; font: 500 15px/1 var(--sans); letter-spacing: .08em;
  text-decoration: none; cursor: pointer; transition: background .3s, color .3s, border-color .3s;
}
.btn:hover { background: var(--accent); border-color: var(--accent); }
.btn-small { min-height: 40px; padding: 0 20px; font-size: 13px; }
.btn[disabled] { background: var(--ink-3); border-color: var(--ink-3); cursor: progress; }
.link-arrow { display: inline-flex; align-items: center; gap: .7em; font-size: 15px; text-decoration: none; padding: 6px 0; border-bottom: 1px solid var(--ink); transition: color .3s, border-color .3s; }
.link-arrow::after { content: '→'; transition: transform .3s var(--ease); }
.link-arrow:hover { color: var(--accent); border-color: var(--accent); }
.link-arrow:hover::after { transform: translateX(4px); }

/* ---- ナビ ---- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50; height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding-inline: var(--gutter); background: rgba(255, 255, 255, .92);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent; transition: border-color .3s;
}
.nav.is-scrolled { border-bottom-color: var(--line); }
.brand { font: 400 22px/1 var(--serif-en); letter-spacing: .12em; text-decoration: none; white-space: nowrap; }
.brand span { font-style: italic; letter-spacing: .06em; }
.nav-links { display: flex; gap: clamp(18px, 2.6vw, 40px); }
.nav-links a { font-size: 12px; letter-spacing: .18em; text-transform: uppercase; text-decoration: none; padding: 8px 0; position: relative; }
.nav-links a::after { content: ''; position: absolute; left: 0; right: 0; bottom: 2px; height: 1px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .35s var(--ease); }
.nav-links a:hover::after, .nav-links a[aria-current='true']::after { transform: scaleX(1); }
.nav-right { display: flex; align-items: center; gap: 10px; }
.nav-toggle { display: none; width: 44px; height: 44px; border: 0; background: none; cursor: pointer; position: relative; }
.nav-toggle i { position: absolute; left: 11px; right: 11px; height: 1.5px; background: var(--ink); transition: transform .3s var(--ease); }
.nav-toggle i:first-child { top: 18px; } .nav-toggle i:last-child { top: 25px; }
.nav-toggle[aria-expanded='true'] i:first-child { transform: translateY(3.5px) rotate(45deg); }
.nav-toggle[aria-expanded='true'] i:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* ---- HERO ---- */
.hero { padding-top: calc(var(--nav-h) + clamp(36px, 7vw, 96px)); padding-bottom: clamp(48px, 7vw, 96px); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(32px, 6vw, 96px); align-items: end; }
.eyebrow { font: italic 400 20px/1 var(--serif-en); color: var(--ink-2); margin-bottom: clamp(20px, 3vw, 36px); display: flex; align-items: center; gap: 14px; }
.eyebrow::before { content: ''; width: 36px; height: 1px; background: var(--ink); }
.hero h1 { font: 500 clamp(2.3rem, 5.4vw, 5rem)/1.32 var(--serif-ja); letter-spacing: .04em; word-break: keep-all; line-break: strict; }
.hero h1 .dot { color: var(--accent); }
.lede { max-width: 31em; margin-top: clamp(24px, 3vw, 40px); color: var(--ink-2); font-size: clamp(15px, 1.15vw, 17px); line-height: 2.1; }
.hero-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 20px 32px; margin-top: clamp(28px, 3.4vw, 48px); }

.hero-media { justify-self: end; width: 100%; max-width: 460px; }
.media-frame { position: relative; aspect-ratio: 4 / 5; background: var(--paper-2); overflow: hidden; }
.media-frame video, .media-frame img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.media-placeholder { position: absolute; inset: 0; display: grid; place-items: center; background: radial-gradient(120% 90% at 30% 20%, #fff 0%, var(--paper-2) 55%, #ece8df 100%); }
.media-frame:not([data-state='placeholder']) .media-placeholder, .media-frame:not([data-state='placeholder']) .crop { display: none; }
.ph-bottle { width: 26%; fill: none; stroke: var(--ink-3); stroke-width: 1; opacity: .7; }
.crop { position: absolute; width: 14px; height: 14px; border: 0 solid var(--ink-3); }
.crop.tl { top: 14px; left: 14px; border-top-width: 1px; border-left-width: 1px; }
.crop.tr { top: 14px; right: 14px; border-top-width: 1px; border-right-width: 1px; }
.crop.bl { bottom: 14px; left: 14px; border-bottom-width: 1px; border-left-width: 1px; }
.crop.br { bottom: 14px; right: 14px; border-bottom-width: 1px; border-right-width: 1px; }
.hero-media figcaption { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 16px; padding-top: 14px; font-size: 12px; letter-spacing: .12em; color: var(--ink-3); }
.cap-no { font: italic 400 18px/1 var(--serif-en); letter-spacing: .02em; color: var(--ink); }
.cap-state { margin-left: auto; color: var(--accent); }

.hero-meta { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 32px; margin-top: clamp(48px, 7vw, 96px); border-top: 1px solid var(--ink); }
.hero-meta div { padding-top: 16px; }
.hero-meta dt, .case-facts dt { font: italic 400 16px/1.4 var(--serif-en); color: var(--ink-3); }
.hero-meta dd { font-size: 13px; line-height: 1.8; margin-top: 4px; }

/* ---- セクション共通 ---- */
.sec { padding-block: clamp(80px, 11vw, 168px); }
.sec-tint { background: var(--paper-2); }
.sec-head { display: grid; grid-template-columns: auto 1fr; align-items: baseline; column-gap: 20px; margin-bottom: clamp(40px, 6vw, 88px); }
.sec-no { font: italic 400 18px/1 var(--serif-en); color: var(--accent); }
.sec-head h2 { font: 400 clamp(3.2rem, 8vw, 7rem)/1 var(--serif-en); letter-spacing: -.01em; }
.sec-ja { grid-column: 2; margin-top: 14px; font-size: 13px; letter-spacing: .1em; color: var(--ink-3); }

/* ---- CASES ---- */
.case { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(24px, 4vw, 64px); align-items: start; padding-block: clamp(28px, 4vw, 48px); border-top: 1px solid var(--ink); }
.case-visual { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; aspect-ratio: 16 / 10; }
.pane { position: relative; display: flex; flex-direction: column; justify-content: space-between; padding: clamp(14px, 1.6vw, 22px); }
.pane-before { background: #ebe8e1; color: var(--ink-3); }
.pane-after { background: var(--ink); color: #fff; background: linear-gradient(160deg, #2a2620, #15130f); }
.pane-label { font: italic 400 clamp(22px, 2.4vw, 34px)/1 var(--serif-en); }
.pane-note { font-size: 11px; letter-spacing: .18em; text-transform: uppercase; opacity: .75; }
.case-tags { display: flex; flex-wrap: wrap; gap: 6px 8px; margin-bottom: 20px; }
.case-tags span { font-size: 11px; letter-spacing: .12em; padding: 3px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-2); white-space: nowrap; }
.case-tags .tag-soon { border-color: var(--accent); color: var(--accent); }
.case h3 { font: 500 clamp(1.5rem, 2.5vw, 2.2rem)/1.5 var(--serif-ja); letter-spacing: .04em; }
.case-facts { margin-top: 28px; border-top: 1px solid var(--line); }
.case-facts div { display: grid; grid-template-columns: 8.5em 1fr; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.case-facts dd { font-size: 14px; line-height: 1.8; }
.case-facts .arrow { color: var(--accent); margin-inline: .2em; }
.case-empty { display: grid; place-items: center; grid-template-columns: 1fr; aspect-ratio: 16 / 6; border: 1px dashed var(--ink-3); }
.case-empty span { font: italic 400 clamp(26px, 3vw, 40px)/1 var(--serif-en); color: var(--ink-3); }
.case-text { margin: 16px 0 22px; color: var(--ink-2); font-size: 15px; }
.case-next { border-bottom: 1px solid var(--ink); }

/* ---- ABOUT ---- */
.about-grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); gap: clamp(32px, 6vw, 96px); }
.statement { font: 500 clamp(1.9rem, 3.8vw, 3.4rem)/1.5 var(--serif-ja); letter-spacing: .05em; word-break: keep-all; }
.about-text > p { color: var(--ink-2); margin-bottom: 1.6em; line-height: 2.1; }
.principles { margin-top: 40px; border-top: 1px solid var(--ink); }
.principles li { display: grid; grid-template-columns: 3em 1fr; padding: 18px 0; border-bottom: 1px solid var(--line); font-size: 14px; color: var(--ink-2); }
.principles span { grid-row: span 2; font: italic 400 18px/1.7 var(--serif-en); color: var(--accent); }
.principles strong { display: block; font: 500 17px/1.7 var(--serif-ja); color: var(--ink); letter-spacing: .04em; }
.profile { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); column-gap: clamp(32px, 6vw, 96px); margin-top: clamp(64px, 9vw, 128px); padding-top: 28px; border-top: 1px solid var(--ink); }
.profile-role { grid-column: 1; font: italic 400 18px/1.4 var(--serif-en); color: var(--ink-3); }
.profile h3 { grid-column: 1; font: 500 clamp(1.8rem, 3vw, 2.6rem)/1.4 var(--serif-ja); letter-spacing: .12em; margin-top: 6px; }
.profile-text { grid-column: 2; grid-row: 1 / span 2; color: var(--ink-2); line-height: 2.1; }
.profile-text p + p { margin-top: 1.2em; color: var(--ink); }

/* ---- SERVICES ---- */
.services { border-top: 1px solid var(--ink); }
.services li { display: grid; grid-template-columns: 5.5rem minmax(0, 5fr) minmax(0, 6fr); gap: 8px 32px; align-items: baseline; padding: clamp(20px, 2.6vw, 34px) 0; border-bottom: 1px solid var(--line); transition: padding-left .45s var(--ease), opacity .9s var(--ease), transform .9s var(--ease); }
.services li:hover { padding-left: 14px; }
.s-no { font: italic 400 clamp(22px, 2.2vw, 30px)/1 var(--serif-en); color: var(--ink-3); transition: color .3s; }
.services li:hover .s-no { color: var(--accent); }
.services h3 { font: 500 clamp(1.2rem, 2vw, 1.75rem)/1.5 var(--serif-ja); letter-spacing: .05em; }
.services p { font-size: 14px; color: var(--ink-2); }

/* ---- GET IN TOUCH ---- */
.contact-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 6vw, 96px); align-items: start; }
.contact-intro { position: sticky; top: calc(var(--nav-h) + 32px); }
.contact-intro .sec-head { margin-bottom: 32px; }
.contact-intro .sec-head h2 { font-size: clamp(2.8rem, 5.6vw, 5rem); }
.contact-lead { font: 500 clamp(1.05rem, 1.5vw, 1.3rem)/2 var(--serif-ja); letter-spacing: .04em; }
.contact-note { margin-top: 20px; font-size: 13px; color: var(--ink-3); }
.req { color: var(--accent); font-style: normal; }

.form, .form-done { background: var(--paper); padding: clamp(24px, 4vw, 56px); }
.field { margin-bottom: 34px; }
.field > label, .field > legend { display: block; font-size: 14px; font-weight: 500; letter-spacing: .06em; margin-bottom: 10px; }
.field legend small { font-weight: 400; font-size: 12px; color: var(--ink-3); margin-left: 8px; }
.field input[type='text'], .field input[type='email'], .field textarea {
  width: 100%; border: 0; border-bottom: 1px solid var(--ink-3); border-radius: 0; background: transparent;
  padding: 10px 0; font: 400 16px/1.7 var(--sans); color: var(--ink); transition: border-color .3s;
}
.field textarea { border: 1px solid var(--ink-3); padding: 14px; resize: vertical; min-height: 150px; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--ink); box-shadow: 0 1px 0 var(--ink); }
.field textarea:focus { box-shadow: 0 0 0 1px var(--ink); }
.field ::placeholder { color: #a39e94; }
.field [aria-invalid='true'] { border-color: var(--accent); }
.err { margin-top: 8px; font-size: 13px; color: var(--accent); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { position: relative; cursor: pointer; }
.chip input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.chip span { display: inline-flex; align-items: center; min-height: 44px; padding: 0 18px; border: 1px solid var(--line); border-radius: 999px; font-size: 14px; background: var(--paper); transition: background .25s, color .25s, border-color .25s; }
.chip:hover span { border-color: var(--ink); }
.chip input:checked + span { background: var(--ink); border-color: var(--ink); color: #fff; }
.chip input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }

.check { display: flex; align-items: flex-start; gap: 12px; font-size: 14px; cursor: pointer; }
.check input { width: 20px; height: 20px; margin: 4px 0 0; accent-color: var(--ink); flex: none; }
.check a { text-underline-offset: 4px; }
.form-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 24px; margin-top: 8px; }
.btn-submit { min-width: 220px; min-height: 58px; }
.form-status { font-size: 14px; flex: 1 1 240px; }
.form-status[data-kind='error'] { color: var(--accent); }
.form-status[data-kind='info'] { color: var(--ink-2); }
.form-done { grid-column: 2; }
.done-mark { font: italic 400 clamp(2.4rem, 5vw, 4rem)/1.1 var(--serif-en); color: var(--accent); margin-bottom: 20px; }
.form-done h3 { font: 500 1.5rem/1.6 var(--serif-ja); margin-bottom: 12px; }
.form-done p:last-child { color: var(--ink-2); }

/* ---- フッター ---- */
.footer { padding: clamp(56px, 8vw, 112px) 0 36px; border-top: 1px solid var(--ink); }
.footer-mark { font: 400 clamp(2.6rem, 11.5vw, 11rem)/1 var(--serif-en); letter-spacing: -.01em; white-space: nowrap; }
.footer-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 32px; margin-top: clamp(32px, 5vw, 64px); padding-top: 20px; border-top: 1px solid var(--line); font-size: 13px; color: var(--ink-2); }
.sns { display: flex; flex-wrap: wrap; gap: 6px 24px; }
.sns a, .footer-legal a { text-decoration: none; padding: 6px 0; display: inline-block; }
.sns a:hover, .footer-legal a:hover { color: var(--accent); }
.copyright { margin-left: auto; }

/* ---- 下層ページ（プライバシーポリシー） ---- */
.doc { max-width: 760px; margin: 0 auto; padding: calc(var(--nav-h) + clamp(40px, 7vw, 88px)) var(--gutter) clamp(64px, 9vw, 120px); }
.doc h1 { font: 500 clamp(1.8rem, 4vw, 2.6rem)/1.5 var(--serif-ja); letter-spacing: .06em; margin-bottom: 12px; }
.doc .doc-en { font: italic 400 20px/1 var(--serif-en); color: var(--accent); margin-bottom: 14px; }
.doc .doc-date { font-size: 13px; color: var(--ink-3); margin-bottom: 48px; }
.doc h2 { font: 500 1.2rem/1.6 var(--serif-ja); letter-spacing: .05em; margin: 44px 0 12px; padding-top: 20px; border-top: 1px solid var(--line); }
.doc p, .doc li { color: var(--ink-2); font-size: 15px; }
.doc ul { list-style: disc; padding-left: 1.4em; margin-top: 8px; }
.doc .back { margin-top: 56px; }

/* ---- スマホ・タブレット ---- */
@media (max-width: 900px) {
  :root { --nav-h: 60px; }
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: var(--nav-h); left: 0; right: 0; flex-direction: column; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--ink); padding: 8px var(--gutter) 20px;
    visibility: hidden; opacity: 0; transform: translateY(-6px); transition: opacity .3s, transform .3s var(--ease), visibility .3s;
  }
  .nav-links.is-open { visibility: visible; opacity: 1; transform: none; }
  .nav-links a { font-size: 13px; padding: 16px 0; border-bottom: 1px solid var(--line); }
  .nav-links a::after { display: none; }
  .brand { font-size: 19px; }
  .hero-grid, .case, .about-grid, .contact-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-media { justify-self: stretch; max-width: none; }
  .hero-meta { grid-template-columns: 1fr; }
  .hero-meta div { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .profile { grid-template-columns: 1fr; }
  .profile-text { grid-column: 1; grid-row: auto; margin-top: 20px; }
  .services li { grid-template-columns: 3.2rem minmax(0, 1fr); }
  .services p { grid-column: 2; }
  .services li:hover { padding-left: 0; }
  .contact-intro { position: static; }
  .form-done { grid-column: 1; }
  .form, .form-done { margin-inline: calc(var(--gutter) * -1 + 8px); }
  .btn-submit { width: 100%; }
  .case-facts div { grid-template-columns: 1fr; gap: 2px; }
  .copyright { margin-left: 0; width: 100%; }
}

/* ---- 動きを減らす設定の端末では、動きを止める ---- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; transition-delay: 0s !important; }
  .js .reveal { opacity: 1; transform: none; }
}