/* =========================================================
   V-consulting — style.css
   Calm & modern: warm off-white / deep navy / logo orange
   ========================================================= */
:root {
  --bg: #f6f4ef;
  --bg-alt: #ecE8e0;
  --surface: #ffffff;
  --ink: #1d2833;
  --ink-soft: #4a5560;
  --muted: #8b9198;
  --line: #d9d4ca;
  --navy: #17222d;
  --navy-2: #22303d;
  --accent: #e46a25;
  --accent-soft: #f2a35e;
  --line-green: #06c755;

  --serif: "Noto Serif JP", "Yu Mincho", serif;
  --sans: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  --en: "Cormorant Garamond", "Times New Roman", serif;

  --container: 1120px;
  --gutter: clamp(20px, 5vw, 48px);
  --header-h: 80px;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 2;
  letter-spacing: .04em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p, dl, dd { margin: 0; }

.container { width: 100%; max-width: calc(var(--container) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: clamp(96px, 13vw, 160px) 0; }
.pc { display: inline; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .6em;
  padding: 14px 32px; border-radius: 999px; border: 1px solid transparent;
  font-size: 14px; font-weight: 500; letter-spacing: .08em; cursor: pointer;
  transition: background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
  font-family: var(--sans);
}
.btn--accent { background: var(--accent); color: #fff; }
.btn--accent:hover { background: #c9581a; }
.btn--dark { background: var(--navy); color: #fff; }
.btn--dark:hover { background: var(--accent); }
.btn--line { background: var(--line-green); color: #fff; }
.btn--line:hover { opacity: .85; }
.btn--outline { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn--outline:hover { background: var(--ink); color: #fff; }
.btn--block {width: 100%; padding: 18px; }

/* ---------- Header ---------- */
.header {
  position: fixed; inset: 0 0 auto; z-index: 100; height: var(--header-h);
  transition: background .4s var(--ease), box-shadow .4s var(--ease), height .4s var(--ease);
}
/* backdrop on a pseudo-element so the fixed mobile nav isn't trapped by backdrop-filter */
.header::before { content: ""; position: absolute; inset: 0; z-index: -1; background: rgba(246, 244, 239, .92); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); box-shadow: 0 1px 0 var(--line); opacity: 0; transition: opacity .4s var(--ease); }
.header.is-scrolled::before { opacity: 1; }
.header.is-scrolled { height: 68px; }
.header__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; padding: 0 var(--gutter); max-width: 1400px; margin: 0 auto; }
.header__logo img { height: 34px; width: auto; }
.gnav { display: flex; align-items: center; gap: 40px; }
.gnav__list { display: flex; gap: 32px; }
.gnav__list a { font-family: var(--en); font-size: 17px; letter-spacing: .08em; position: relative; }
.gnav__list a::after { content: ""; position: absolute; left: 0; bottom: 2px; width: 100%; height: 1px; background: var(--accent); transform: scaleX(0); transform-origin: right; transition: transform .4s var(--ease); }
.gnav__list a:hover::after { transform: scaleX(1); transform-origin: left; }
.gnav__cta { padding: 10px 24px; font-size: 13px; }
.menu-btn { display: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center; overflow: hidden;
  background:
    radial-gradient(ellipse 60% 70% at 85% 30%, rgba(228,106,37,.08), transparent 70%),
    var(--bg);
}
.hero::before { /* subtle grid */
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(29,40,51,.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(29,40,51,.05) 1px, transparent 1px);
  background-size: 120px 120px;
  mask-image: linear-gradient(to right, transparent 0%, #000 55%);
  -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 55%);
}
.hero__deco { position: absolute; right: -4vw; top: 50%; width: 46vw; max-width: 640px; aspect-ratio: 1; transform: translateY(-50%); pointer-events: none; }
.hero__deco span {
  position: absolute; right: 0; height: 9%; border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-soft) 70%, rgba(242,163,94,0));
  transform: skewX(-24deg); opacity: 0; animation: slideIn 1.6s var(--ease) forwards;
}
.hero__deco span:nth-child(1) { top: 22%; width: 62%; animation-delay: .5s; }
.hero__deco span:nth-child(2) { top: 36%; width: 54%; animation-delay: .65s; opacity: 0; }
.hero__deco span:nth-child(3) { top: 50%; width: 46%; animation-delay: .8s; }
.hero__deco span:nth-child(4) { top: 64%; width: 38%; animation-delay: .95s; }
@keyframes slideIn { from { opacity: 0; transform: skewX(-24deg) translateX(60px); } to { opacity: .9; transform: skewX(-24deg) translateX(0); } }
.hero__deco span:nth-child(2) { animation-name: slideIn2; }
.hero__deco span:nth-child(3) { animation-name: slideIn3; }
.hero__deco span:nth-child(4) { animation-name: slideIn4; }
@keyframes slideIn2 { from { opacity: 0; transform: skewX(-24deg) translateX(60px); } to { opacity: .6; transform: skewX(-24deg) translateX(0); } }
@keyframes slideIn3 { from { opacity: 0; transform: skewX(-24deg) translateX(60px); } to { opacity: .38; transform: skewX(-24deg) translateX(0); } }
@keyframes slideIn4 { from { opacity: 0; transform: skewX(-24deg) translateX(60px); } to { opacity: .2; transform: skewX(-24deg) translateX(0); } }

.hero__inner { position: relative; width: 100%; max-width: calc(var(--container) + var(--gutter) * 2); margin: 0 auto; padding: var(--header-h) var(--gutter) 0; }
.hero__label { font-family: var(--en); font-style: italic; font-size: 18px; color: var(--accent); letter-spacing: .1em; margin-bottom: 28px; }
.hero__title { font-family: var(--serif); font-weight: 500; font-size: clamp(36px, 6.4vw, 76px); line-height: 1.45; letter-spacing: .08em; }
.hero__title span { display: block; }
.hero__en { font-family: var(--en); font-size: clamp(16px, 1.8vw, 21px); color: var(--ink-soft); margin-top: 28px; letter-spacing: .06em; }
.hero__lead { margin-top: 40px; font-size: 15px; color: var(--ink-soft); line-height: 2.2; max-width: 42em; }
.hero__scroll {
  position: absolute; left: var(--gutter); bottom: 0; font-family: var(--en); font-size: 13px; letter-spacing: .2em;
  writing-mode: vertical-rl; padding-bottom: 96px; color: var(--ink-soft);
}
.hero__scroll::after { content: ""; position: absolute; left: 50%; bottom: 0; width: 1px; height: 80px; background: var(--ink-soft); transform-origin: top; animation: scrollLine 2.2s var(--ease) infinite; }
@keyframes scrollLine { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* ---------- Section heading ---------- */
.sec-head__en {
  font-family: var(--en); font-size: 17px; letter-spacing: .14em; color: var(--accent);
  display: flex; align-items: center; gap: 14px; margin-bottom: 18px;
}
.sec-head__en::before { content: ""; width: 32px; height: 1px; background: currentColor; }
.sec-head__ja { font-family: var(--serif); font-weight: 500; font-size: clamp(24px, 3.2vw, 36px); line-height: 1.7; letter-spacing: .08em; }
.sec-head__lead { margin-top: 24px; color: var(--ink-soft); }
.sec-head--center { text-align: center; margin-bottom: clamp(56px, 7vw, 88px); }
.sec-head--center .sec-head__en { justify-content: center; }
.sec-head--center .sec-head__en::after { content: ""; width: 32px; height: 1px; background: currentColor; }

/* ---------- Message ---------- */
.message { background: var(--surface); }
.message__grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(40px, 7vw, 100px); align-items: start; }
.message__body p + p { margin-top: 1.6em; }
.message__body { color: var(--ink-soft); font-size: 15.5px; line-height: 2.3; }
.message__sign { margin-top: 2.6em !important; font-family: var(--serif); color: var(--ink); font-size: 14px; line-height: 2; }
.message__sign span { font-size: 16px; }

/* ---------- Concept ---------- */
.concept__list { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.concept__item { padding: 48px 36px 8px; border-right: 1px solid var(--line); }
.concept__item:last-child { border-right: 0; }
.concept__num { font-family: var(--en); font-size: 15px; color: var(--muted); letter-spacing: .1em; }
.concept__en { font-family: var(--en); font-weight: 400; font-size: clamp(34px, 3.6vw, 44px); line-height: 1.2; margin-top: 24px; letter-spacing: .02em; }
.concept__en::first-letter { color: var(--accent); }
.concept__ja { font-family: var(--serif); font-size: 15px; margin-top: 6px; }
.concept__text { margin-top: 24px; color: var(--ink-soft); font-size: 14.5px; }

/* ---------- Service ---------- */
.service { background: var(--navy); color: #e8e6e1; }
.service .sec-head { margin-bottom: clamp(56px, 7vw, 80px); max-width: 720px; }
.service .sec-head__lead { color: #a9b0b7; }
.service__list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 clamp(40px, 6vw, 80px); }
.service__item { display: grid; grid-template-columns: 56px 1fr; gap: 16px; padding: 40px 0; border-top: 1px solid rgba(255,255,255,.14); }
.service__num { font-family: var(--en); font-size: 22px; color: var(--accent-soft); line-height: 1.4; }
.service__title { font-family: var(--serif); font-weight: 500; font-size: 21px; line-height: 1.6; color: #fff; letter-spacing: .06em; }
.service__en { font-family: var(--en); font-style: italic; color: #8e98a2; font-size: 15px; margin-bottom: 16px; }
.service__body > p:not(.service__en) { font-size: 14.5px; color: #c3c8cd; }
.service__price { margin-top: 18px !important; color: #fff !important; }
.service__price strong { font-family: var(--serif); font-size: 22px; font-weight: 500; color: var(--accent-soft); margin: 0 .2em; }
.service__price small { display: block; font-size: 12px; color: #8e98a2; line-height: 1.8; }
.service__note { margin-top: 12px; font-size: 13px !important; color: var(--accent-soft) !important; }

/* ---------- Works ---------- */
.works__grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: clamp(40px, 7vw, 100px); }
.works__row { display: grid; grid-template-columns: 9em 1fr; gap: 24px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.works__row:first-child { border-top: 1px solid var(--line); }
.works__row dt { font-family: var(--serif); font-weight: 500; }
.works__row dd { color: var(--ink-soft); font-size: 14.5px; }

/* ---------- Profile ---------- */
.profile { background: var(--bg-alt); }
.profile__grid { display: grid; grid-template-columns: 210px 1fr; gap: clamp(40px, 7vw, 100px); align-items: start; }
.profile__visual { position: relative; margin: 0 24px 24px 0; }
.profile__visual::before { /* offset accent frame */
  content: ""; position: absolute; inset: 24px -24px -24px 24px; border: 1px solid var(--accent); pointer-events: none;
}
.profile__photo { position: relative; aspect-ratio: 4 / 5; background: #e9e7e3; overflow: hidden; }
.profile__photo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 20%; }
.profile__role { font-size: 13px; color: var(--ink-soft); margin-top: 8px; }
.profile__name { font-family: var(--serif); font-weight: 500; font-size: clamp(28px, 3vw, 36px); letter-spacing: .14em; margin: 4px 0 32px; line-height: 1.6; }
.profile__name span { display: block; font-family: var(--en); font-weight: 400; font-size: 17px; letter-spacing: .1em; color: var(--muted); }
.profile__body > p:not(.sec-head__en):not(.profile__role) { color: var(--ink-soft); font-size: 14.5px; }
.profile__body > p + p { margin-top: 1.2em; }
.profile__meta { margin-top: 40px; display: grid; grid-template-columns: 1fr 1.4fr; gap: 32px; padding-top: 32px; border-top: 1px solid var(--line); }
.profile__meta h3 { font-family: var(--serif); font-weight: 500; font-size: 15px; margin-bottom: 10px; }
.profile__meta li { font-size: 13px; color: var(--ink-soft); line-height: 1.9; padding-left: 1em; text-indent: -1em; }
.profile__meta li::before { content: "・"; }

/* ---------- Flow ---------- */
.flow__list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.flow__item { background: var(--surface); padding: 36px 28px; position: relative; }
.flow__item:not(:last-child)::after { content: ""; position: absolute; right: -14px; top: 50%; width: 8px; height: 8px; border-top: 1px solid var(--muted); border-right: 1px solid var(--muted); transform: translateY(-50%) rotate(45deg); }
.flow__step { font-family: var(--en); font-style: italic; color: var(--accent); font-size: 16px; letter-spacing: .08em; }
.flow__item h3 { font-family: var(--serif); font-weight: 500; font-size: 18px; margin: 8px 0 12px; }
.flow__item p { font-size: 13.5px; color: var(--ink-soft); line-height: 1.9; }
.flow__note { margin-top: 40px; font-size: 13px; color: var(--muted); text-align: center; }

/* ---------- Company ---------- */
.company { background: var(--surface); }
.company .sec-head { margin-bottom: clamp(40px, 5vw, 64px); }
.company__body { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(32px, 5vw, 64px); }
.company__table > div { display: grid; grid-template-columns: 6em 1fr; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); font-size: 14.5px; }
.company__table > div:first-child { border-top: 1px solid var(--line); }
.company__table dt { color: var(--muted); }
.company__map { min-height: 340px; background: var(--bg-alt); }
.company__map iframe { width: 100%; height: 100%; min-height: 340px; border: 0; filter: grayscale(1) contrast(.95); }

/* ---------- Related ---------- */
.related { padding: 0 0 clamp(80px, 10vw, 120px); background: var(--surface); }
.related__card {
  --ax: #8cc63e;
  position: relative; overflow: hidden;
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr) auto; align-items: center; gap: clamp(24px, 4vw, 56px);
  padding: clamp(36px, 5vw, 56px) clamp(28px, 5vw, 64px);
  background: var(--bg); border: 1px solid var(--line);
  transition: border-color .4s var(--ease), box-shadow .4s var(--ease);
}
.related__card::before { /* lime bar that grows on hover */
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--ax);
  transition: width .5s var(--ease);
}
.related__card:hover { border-color: #c9c3b7; box-shadow: 0 20px 40px -24px rgba(23,34,45,.25); }
.related__card:hover::before { width: 8px; }
.related__logo h2 { margin: 0; line-height: 0; }
.related__logo img { width: 100%; max-width: 380px; height: auto; }
.related__info { padding-left: clamp(0px, 3vw, 40px); border-left: 1px solid var(--line); }
.related__label { font-family: var(--en); font-style: italic; color: #6a9a2a; font-size: 15px; letter-spacing: .06em; }
.related__text { color: var(--ink-soft); font-size: 14px; margin-top: 4px; line-height: 1.9; }
.related__link { font-size: 13px; margin-top: 10px; font-weight: 500; letter-spacing: .08em; }
.related__arrow { flex: none; width: 64px; height: 64px; border: 1px solid var(--ink); border-radius: 50%; position: relative; transition: border-color .4s var(--ease), background .4s var(--ease); }
.related__arrow::before { content: ""; position: absolute; left: 50%; top: 50%; width: 9px; height: 9px; border-top: 1px solid var(--ink); border-right: 1px solid var(--ink); transform: translate(-70%, -50%) rotate(45deg); transition: border-color .4s var(--ease); }
.related__card:hover .related__arrow { background: var(--ax); border-color: var(--ax); }
.related__card:hover .related__arrow::before { border-color: #fff; }

/* ---------- Contact ---------- */
.contact__grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: clamp(32px, 5vw, 64px); align-items: start; }
.contact__form { background: var(--surface); padding: clamp(28px, 5vw, 56px); }
.field { margin-bottom: 24px; }
.field label { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 500; margin-bottom: 8px; }
.req { font-size: 11px; color: #fff; background: var(--accent); padding: 0 8px; line-height: 20px; border-radius: 2px; letter-spacing: .1em; }
.field input, .field select, .field textarea {
  width: 100%; padding: 14px 16px; font: inherit; font-size: 15px; color: var(--ink);
  background: var(--bg); border: 1px solid transparent; border-radius: 2px; transition: border-color .3s, background .3s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); background: #fff; }
.field .is-invalid { border-color: #c0392b; }
.contact__privacy { font-size: 12.5px; color: var(--muted); margin: -4px 0 20px; line-height: 1.8; }
.btn:disabled { opacity: .6; cursor: default; }
.btn--dark:disabled:hover { background: var(--navy); }
.contact__status {margin-top: 16px; font-size: 14px; text-align: center; min-height: 1.5em; }
.contact__side { display: grid; gap: 20px; }
.contact__side > div { padding: 36px 32px; border: 1px solid var(--line); }
.contact__side-label { font-family: var(--en); font-style: italic; color: var(--accent); font-size: 15px; }
.contact__side h3 { font-family: var(--serif); font-weight: 500; font-size: 19px; margin: 4px 0 12px; }
.contact__side p:not(.contact__side-label) { font-size: 13.5px; color: var(--ink-soft); line-height: 1.9; }
.contact__side .btn { margin-top: 20px; }

/* ---------- Footer ---------- */
.footer { background: var(--navy); color: #c3c8cd; padding: 72px 0 28px; }
.footer__inner { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; flex-wrap: wrap; }
.footer__logo { height: 34px; width: auto; background: #fff; padding: 8px 12px; border-radius: 2px; box-sizing: content-box; margin-bottom: 20px; }
.footer__brand p { font-size: 13px; }
.footer__nav { display: flex; flex-wrap: wrap; gap: 12px 32px; }
.footer__nav a { font-family: var(--en); font-size: 16px; letter-spacing: .08em; transition: color .3s; }
.footer__nav a:hover { color: var(--accent-soft); }
.footer__copy { margin-top: 56px; text-align: center; font-family: var(--en); font-size: 13px; letter-spacing: .1em; color: #7d8790; }

/* ---------- Fade-in ---------- */
.js-fade { opacity: 0; transform: translateY(24px); transition: opacity 1.1s var(--ease), transform 1.1s var(--ease); }
.js-fade.is-visible { opacity: 1; transform: none; }
/* Service: slide in from left (odd) / right (even) */
.service { overflow: hidden; }
.service__item.js-fade { transition-duration: 1.3s; }
.service__item.js-fade:nth-child(odd) { transform: translateX(-80px); }
.service__item.js-fade:nth-child(even) { transform: translateX(80px); }
.service__item.js-fade.is-visible { transform: none; }
@media (prefers-reduced-motion: reduce) {
  .service__item.js-fade { transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js-fade { opacity: 1; transform: none; transition: none; }
  .hero__deco span, .hero__scroll::after { animation: none; opacity: .6; }
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1024px) {
  .gnav__list { gap: 22px; }
  .gnav { gap: 24px; }
  .company__body { grid-template-columns: 1fr; }
  .flow__list { grid-template-columns: repeat(2, 1fr); }
  .flow__item:nth-child(2)::after { display: none; }
}

@media (max-width: 900px) {
  :root { --header-h: 64px; }
  .header.is-scrolled { height: 64px; }
  .header__logo img { height: 28px; }
  .menu-btn {
    display: block; position: relative; z-index: 110; width: 44px; height: 44px;
    background: none; border: 0; cursor: pointer; padding: 0;
  }
  .menu-btn span { position: absolute; left: 10px; width: 24px; height: 1px; background: var(--ink); transition: transform .4s var(--ease), top .4s var(--ease); }
  .menu-btn span:nth-child(1) { top: 18px; }
  .menu-btn span:nth-child(2) { top: 26px; }
  .is-menu-open .menu-btn span { background: #fff; }
  .is-menu-open .menu-btn span:nth-child(1) { top: 22px; transform: rotate(20deg); }
  .is-menu-open .menu-btn span:nth-child(2) { top: 22px; transform: rotate(-20deg); }

  .gnav {
    position: fixed; inset: 0; z-index: 105; background: var(--navy);
    flex-direction: column; justify-content: center; gap: 48px;
    opacity: 0; visibility: hidden; transition: opacity .4s var(--ease), visibility .4s;
  }
  .is-menu-open .gnav { opacity: 1; visibility: visible; }
  .gnav__list { flex-direction: column; align-items: center; gap: 22px; }
  .gnav__list a { color: #fff; font-size: 26px; }
  .gnav__cta { padding: 14px 40px; font-size: 14px; }
  body.is-menu-open { overflow: hidden; }

  .pc { display: none; }
  .message__grid, .works__grid, .profile__grid, .contact__grid { grid-template-columns: 1fr; }
  .concept__list { grid-template-columns: 1fr; }
  .concept__item { border-right: 0; border-bottom: 1px solid var(--line); padding: 40px 4px 40px; }
  .service__list { grid-template-columns: 1fr; }
  .profile__visual { max-width: 180px; }
  .hero__deco { width: 80vw; right: -30vw; opacity: .55; }
}

@media (max-width: 600px) {
  body { font-size: 14.5px; }
  .hero__title { letter-spacing: .04em; }
  .hero__lead br { display: none; }
  .hero__scroll { display: none; }
  .service__item { grid-template-columns: 40px 1fr; }
  .works__row { grid-template-columns: 1fr; gap: 4px; }
  .profile__meta { grid-template-columns: 1fr; gap: 24px; }
  .flow__list { grid-template-columns: 1fr; }
  .flow__item::after { display: none; }
  .company__table > div { grid-template-columns: 5em 1fr; }
  .related__card { padding: 32px 24px 32px 28px; grid-template-columns: 1fr auto; gap: 20px; }
  .related__logo { grid-column: 1 / -1; }
  .related__logo img { max-width: 260px; }
  .related__info { padding-left: 0; border-left: 0; }
  .related__arrow { width: 48px; height: 48px; }
  .profile__visual { margin: 0 16px 16px 0; }
  .profile__visual::before { inset: 16px -16px -16px 16px; }
  .footer__inner { flex-direction: column; }
}