/* ===========================================
   EUROPA — 株式会社エウロパ
   Style Sheet
   =========================================== */

/* --- 0. CSS Variables --- */
:root {
  --color-bg: #FBFAF7;
  --color-bg-soft: #F4EFE7;
  --color-text: #2F2C28;
  --color-muted: #7C746B;
  --color-accent: #9A7B5F;
  --color-line: rgba(47, 44, 40, 0.12);
  --color-green: #8A9A7B;
  --color-white: #FFFFFF;
  --font-jp: 'Zen Kaku Gothic New', sans-serif;
  --font-en: 'Jost', sans-serif;
  --header-h: 72px;
  --section-py: clamp(80px, 10vw, 140px);
  --container-w: 1100px;
  --ease: cubic-bezier(0.23, 1, 0.32, 1);
}

/* --- 1. Reset --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { font-family: var(--font-jp); color: var(--color-text); background: var(--color-bg); line-height: 1.9; letter-spacing: 0.04em; overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }

/* --- 2. Typography --- */
h1, h2, h3, h4 { font-weight: 400; line-height: 1.5; }
.section-label { font-family: var(--font-en); font-size: 0.7rem; font-weight: 400; letter-spacing: 0.18em; text-transform: uppercase; color: var(--color-accent); margin-bottom: 16px; display: block; }
.section-heading { font-size: clamp(1.4rem, 2.5vw, 1.9rem); font-weight: 400; line-height: 1.6; margin-bottom: 24px; letter-spacing: 0.06em; }
.section-body { font-size: 0.92rem; color: var(--color-muted); line-height: 2; max-width: 640px; }
.sp-only-break { display: none; }

/* --- 3. Layout --- */
.container { width: 90%; max-width: var(--container-w); margin: 0 auto; }
.section { padding: var(--section-py) 0; }

/* --- 4. Scroll Reveal --- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ===========================================
   HEADER
   =========================================== */
.header { position: fixed; top: 0; left: 0; width: 100%; height: var(--header-h); z-index: 100; display: flex; align-items: center; background: rgba(251, 250, 247, 0.8); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid transparent; transition: background 0.4s, border-color 0.4s; }
.header.is-scrolled { background: rgba(251, 250, 247, 0.95); border-bottom-color: var(--color-line); }
.header .container { display: flex; align-items: center; justify-content: space-between; width: 92%; max-width: 1240px; }
.header__logo { display: inline-flex; align-items: center; gap: 10px; height: var(--header-h); color: var(--color-text); }
.header__logo-mark { width: 42px; height: auto; flex: 0 0 auto; }
.header__logo-text { font-family: var(--font-en); font-size: 1.15rem; font-weight: 500; letter-spacing: 0.22em; line-height: 1; }
.header__nav { display: flex; align-items: center; gap: 28px; }
.header__nav a { font-size: 0.78rem; letter-spacing: 0.06em; color: var(--color-text); position: relative; transition: color 0.3s; }
.header__nav a::after { content: ''; position: absolute; bottom: -3px; left: 0; width: 0; height: 1px; background: var(--color-accent); transition: width 0.3s var(--ease); }
.header__nav a:hover { color: var(--color-accent); }
.header__nav a:hover::after { width: 100%; }
.header__cta-link { font-size: 0.78rem; letter-spacing: 0.06em; color: var(--color-accent) !important; border: 1px solid var(--color-accent); padding: 6px 18px; border-radius: 2px; transition: background 0.3s, color 0.3s; }
.header__cta-link:hover { background: var(--color-accent); color: var(--color-white) !important; }
.header__cta-link::after { display: none !important; }

/* Hamburger */
.hamburger { display: none; width: 28px; height: 20px; position: relative; z-index: 110; flex-direction: column; justify-content: space-between; }
.hamburger span { display: block; width: 100%; height: 1.5px; background: var(--color-text); transition: transform 0.35s var(--ease), opacity 0.25s; transform-origin: center; }
.hamburger.is-open span:nth-child(1) { transform: translateY(9.25px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-9.25px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu { position: fixed; inset: 0; background: rgba(251, 250, 247, 0.97); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); z-index: 105; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 28px; opacity: 0; pointer-events: none; transition: opacity 0.4s var(--ease); }
.mobile-menu.is-open { opacity: 1; pointer-events: auto; }
.mobile-menu a { font-size: 1rem; letter-spacing: 0.08em; }

/* ===========================================
   OPENING ANIMATION
   =========================================== */
.opening { position: fixed; inset: 0; z-index: 200; background: var(--color-bg); display: flex; flex-direction: column; align-items: center; justify-content: center; }
.opening__brand { display: inline-flex; flex-direction: column; align-items: center; gap: 14px; }
.opening__mark { width: clamp(74px, 12vw, 112px); height: auto; opacity: 0; transform: translateY(8px); transition: opacity 2s var(--ease), transform 2s var(--ease); }
.opening__logo { font-family: var(--font-en); font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 500; letter-spacing: 0.32em; opacity: 0; transform: translateY(8px); transition: opacity 2s var(--ease), transform 2s var(--ease); }
.opening__sub { font-size: 0.78rem; letter-spacing: 0.14em; margin-top: 10px; opacity: 0; transition: opacity 0.8s var(--ease); }
.opening__skip { position: fixed; bottom: 28px; right: 28px; z-index: 210; font-family: var(--font-en); font-size: 0.72rem; letter-spacing: 0.12em; color: var(--color-muted); border: 1px solid var(--color-line); padding: 6px 16px; border-radius: 2px; opacity: 0; transition: opacity 0.4s; cursor: pointer; }
.opening__skip.is-visible { opacity: 1; }
.opening.is-fade-out { opacity: 0; transition: opacity 0.6s var(--ease); pointer-events: none; }
.opening.is-hidden { display: none; }

/* ===========================================
   HERO
   =========================================== */
.hero { position: relative; width: 100%; height: 100vh; min-height: 600px; overflow: hidden; }
.hero__slides { position: absolute; inset: 0; }
.hero__slide { position: absolute; inset: 0; opacity: 0; transition: opacity 1.2s var(--ease); }
.hero__slide.is-active { opacity: 1; }
.hero__slide img { width: 100%; height: 100%; object-fit: cover; }
.hero__overlay { position: absolute; inset: 0; background: linear-gradient(to right, rgba(251,250,247,0.88) 0%, rgba(251,250,247,0.72) 35%, rgba(251,250,247,0.4) 60%, rgba(251,250,247,0.05) 100%); z-index: 2; }
.hero__content { position: absolute; z-index: 3; left: 0; top: 50%; transform: translateY(-50%); width: 92%; max-width: 1240px; margin: 0 auto; right: 0; padding: 0 5%; }
.hero__content .hero__en,
.hero__content .hero__title,
.hero__content .hero__sub,
.hero__content .hero__cta { opacity: 0; transform: translateY(14px); transition: opacity 1.8s var(--ease), transform 2s var(--ease); }
.hero__content.is-visible .hero__en { opacity: 1; transform: translateY(0); transition-delay: 0s; }
.hero__content.is-visible .hero__title { opacity: 1; transform: translateY(0); transition-delay: 0.35s; }
.hero__content.is-visible .hero__sub { opacity: 1; transform: translateY(0); transition-delay: 0.7s; }
.hero__content.is-visible .hero__cta { opacity: 1; transform: translateY(0); transition-delay: 1.05s; }
.hero__en { font-family: var(--font-en); font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--color-accent); margin-bottom: 18px; }
.hero__title { font-size: clamp(1.7rem, 4vw, 2.8rem); font-weight: 400; letter-spacing: 0.1em; line-height: 1.5; margin-bottom: 20px; }
.hero__sub { font-size: clamp(0.82rem, 1.2vw, 0.92rem); color: var(--color-muted); line-height: 2; margin-bottom: 32px; max-width: 440px; }
.hero__sub-sp { display: none; }
.hero__cta { display: inline-block; font-size: 0.82rem; letter-spacing: 0.1em; color: var(--color-text); border: 1px solid var(--color-text); padding: 12px 36px; border-radius: 2px; transition: opacity 1.8s var(--ease), transform 2s var(--ease), background 0.3s, color 0.3s; }
.hero__cta:hover { background: var(--color-text); color: var(--color-bg); }

/* Slide indicators */
.hero__indicators { position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%); z-index: 5; display: flex; gap: 10px; }
.hero__dot { width: 6px; height: 6px; border-radius: 50%; background: var(--color-line); border: none; cursor: pointer; transition: background 0.3s, transform 0.3s; }
.hero__dot.is-active { background: var(--color-accent); transform: scale(1.3); }

/* ===========================================
   CONCEPT
   =========================================== */
.concept { background: var(--color-bg); }
.concept__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.concept__image { overflow: hidden; border-radius: 2px; }
.concept__image img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/5; }
.concept__text .section-body { margin-bottom: 28px; }
.concept__accent { font-size: 0.88rem; color: var(--color-accent); letter-spacing: 0.06em; border-left: 2px solid var(--color-accent); padding-left: 16px; line-height: 1.8; margin-top: 28px; }

/* ===========================================
   SERVICE
   =========================================== */
.service { background: var(--color-bg-soft); }
.service__header { text-align: center; margin-bottom: 56px; }
.service__header .section-body { margin: 0 auto; }
.service__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.service__card { background: var(--color-bg); border: 1px solid var(--color-line); border-radius: 2px; padding: 36px 32px; transition: transform 0.4s var(--ease); }
.service__card:hover { transform: translateY(-3px); }
.service__card-num { font-family: var(--font-en); font-size: 0.68rem; letter-spacing: 0.12em; color: var(--color-accent); margin-bottom: 12px; }
.service__card-title { font-size: 1.05rem; font-weight: 500; margin-bottom: 14px; letter-spacing: 0.06em; }
.service__card-text { font-size: 0.85rem; color: var(--color-muted); line-height: 1.9; }

/* ===========================================
   AREA & FLOW
   =========================================== */
.area-flow { background: var(--color-bg); }
.area-flow__top { margin-bottom: 72px; }
.area__tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.area__tag { font-size: 0.8rem; letter-spacing: 0.04em; color: var(--color-muted); border: 1px solid var(--color-line); padding: 6px 16px; border-radius: 2px; }
.area__desc { font-size: 0.88rem; color: var(--color-muted); line-height: 2; margin-top: 24px; max-width: 640px; }

/* Flow */
.flow__header { text-align: center; margin-bottom: 48px; }
.flow__steps { display: flex; justify-content: center; gap: 0; position: relative; max-width: 900px; margin: 0 auto; }
.flow__step { flex: 1; text-align: center; position: relative; padding: 0 12px; }
.flow__step-num { font-family: var(--font-en); font-size: 0.65rem; letter-spacing: 0.12em; color: var(--color-accent); margin-bottom: 10px; }
.flow__step-circle { width: 10px; height: 10px; border-radius: 50%; background: var(--color-accent); margin: 0 auto 14px; position: relative; z-index: 2; }
.flow__step:not(:last-child) .flow__step-circle::after { content: ''; position: absolute; top: 50%; left: 100%; width: calc(100% + 60px); height: 1px; background: var(--color-line); transform: translateY(-50%); z-index: 1; }
.flow__step-label { font-size: 0.82rem; letter-spacing: 0.04em; color: var(--color-text); }

/* ===========================================
   COMPANY
   =========================================== */
.company { background: var(--color-bg-soft); }
.company__header { text-align: center; margin-bottom: 48px; }
.company__table { max-width: 720px; margin: 0 auto; background: var(--color-bg); border: 1px solid var(--color-line); border-radius: 2px; overflow: hidden; }
.company__row { display: flex; border-bottom: 1px solid var(--color-line); }
.company__row:last-child { border-bottom: none; }
.company__label { width: 180px; min-width: 180px; padding: 18px 24px; font-size: 0.82rem; color: var(--color-muted); background: rgba(244, 239, 231, 0.45); letter-spacing: 0.04em; }
.company__value { flex: 1; padding: 18px 24px; font-size: 0.88rem; line-height: 1.7; }
.company__value a { color: var(--color-accent); transition: opacity 0.3s; }
.company__value a:hover { opacity: 0.7; }

/* ===========================================
   FAQ
   =========================================== */
.faq { background: var(--color-bg); }
.faq__header { text-align: center; margin-bottom: 48px; }
.faq__list { max-width: 760px; margin: 0 auto; }
.faq__item { border-bottom: 1px solid var(--color-line); }
.faq__item:first-child { border-top: 1px solid var(--color-line); }
.faq__question { width: 100%; text-align: left; padding: 22px 40px 22px 0; font-size: 0.9rem; letter-spacing: 0.04em; line-height: 1.7; position: relative; cursor: pointer; display: flex; align-items: flex-start; gap: 12px; }
.faq__question::before { content: 'Q.'; font-family: var(--font-en); font-size: 0.82rem; color: var(--color-accent); flex-shrink: 0; margin-top: 1px; }
.faq__question::after { content: ''; position: absolute; right: 0; top: 50%; width: 12px; height: 12px; border-right: 1.5px solid var(--color-muted); border-bottom: 1.5px solid var(--color-muted); transform: translateY(-70%) rotate(45deg); transition: transform 0.35s var(--ease); }
.faq__item.is-open .faq__question::after { transform: translateY(-30%) rotate(-135deg); }
.faq__answer { max-height: 0; overflow: hidden; transition: max-height 0.45s var(--ease), padding 0.35s; }
.faq__answer-inner { padding: 0 0 22px 32px; font-size: 0.85rem; color: var(--color-muted); line-height: 2; }

/* ===========================================
   CONTACT
   =========================================== */
.contact { background: var(--color-bg-soft); }
.contact__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: flex-start; }
.contact__info { }
.contact__tel { font-family: var(--font-en); font-size: 1.4rem; font-weight: 400; letter-spacing: 0.1em; margin-top: 24px; color: var(--color-text); }
.contact__tel-note { font-size: 0.78rem; color: var(--color-muted); margin-top: 4px; }
.contact__form { background: var(--color-bg); border: 1px solid var(--color-line); border-radius: 2px; padding: 36px; }
.form__group { margin-bottom: 20px; }
.form__label { display: block; font-size: 0.78rem; letter-spacing: 0.06em; color: var(--color-muted); margin-bottom: 6px; font-family: var(--font-en); }
.form__input,
.form__textarea { width: 100%; border: 1px solid var(--color-line); background: var(--color-bg); padding: 10px 14px; font-size: 0.88rem; border-radius: 2px; transition: border-color 0.3s; outline: none; }
.form__input:focus,
.form__textarea:focus { border-color: var(--color-accent); }
.form__textarea { min-height: 120px; resize: vertical; }
.form__submit { display: block; width: 100%; padding: 13px; font-size: 0.85rem; letter-spacing: 0.1em; color: var(--color-bg); background: var(--color-text); border: 1px solid var(--color-text); border-radius: 2px; cursor: pointer; transition: background 0.3s, color 0.3s; }
.form__submit:hover { background: transparent; color: var(--color-text); }
.form__message { display: none; text-align: center; padding: 20px; font-size: 0.88rem; color: var(--color-accent); line-height: 1.8; }
.form__message.is-visible { display: block; }

/* ===========================================
   FOOTER
   =========================================== */
.footer { background: var(--color-text); color: rgba(251, 250, 247, 0.7); padding: 64px 0 32px; }
.footer__inner { display: flex; justify-content: space-between; align-items: flex-start; gap: 40px; margin-bottom: 48px; }
.footer__brand { }
.footer__logo { font-family: var(--font-en); font-size: 1.15rem; font-weight: 500; letter-spacing: 0.22em; color: var(--color-bg); margin-bottom: 8px; }
.footer__company { font-size: 0.75rem; letter-spacing: 0.06em; }
.footer__nav { display: flex; gap: 24px; flex-wrap: wrap; }
.footer__nav a { font-size: 0.78rem; letter-spacing: 0.04em; transition: color 0.3s; }
.footer__nav a:hover { color: var(--color-bg); }
.footer__bottom { border-top: 1px solid rgba(251, 250, 247, 0.1); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; }
.footer__policy { font-size: 0.72rem; font-family: var(--font-en); letter-spacing: 0.08em; transition: color 0.3s; }
.footer__policy:hover { color: var(--color-bg); }
.footer__copy { font-size: 0.68rem; font-family: var(--font-en); letter-spacing: 0.06em; }

.fixed-mobile-cta { display: none; }

/* ===========================================
   RESPONSIVE
   =========================================== */
@media (max-width: 1024px) {
  .header__nav { display: none; }
  .hamburger { display: flex; width: 44px; height: 44px; align-items: center; justify-content: center; }
  .hamburger span { position: absolute; width: 28px; }
  .hamburger span:nth-child(1) { transform: translateY(-8px); }
  .hamburger span:nth-child(3) { transform: translateY(8px); }
  .hamburger.is-open span:nth-child(1) { transform: rotate(45deg); }
  .hamburger.is-open span:nth-child(3) { transform: rotate(-45deg); }
  .mobile-menu { align-items: stretch; justify-content: flex-start; gap: 8px; overflow-y: auto; padding: 88px 24px 48px; }
  .mobile-menu a { display: block; padding: 12px 20px; font-size: 1rem; line-height: 1.7; letter-spacing: 0.08em; text-align: center; }
  .mobile-menu a:last-child { margin-top: 14px; color: var(--color-accent); border: 1px solid var(--color-accent); background: rgba(255, 255, 255, 0.45); }
  .concept__inner { grid-template-columns: 1fr; gap: 36px; }
  .concept__image { max-height: 400px; }
  .service__grid { grid-template-columns: 1fr; }
  .contact__inner { grid-template-columns: 1fr; gap: 36px; }
  .footer__inner { flex-direction: column; gap: 28px; }
  .footer__bottom { flex-direction: column; gap: 12px; text-align: center; }
}

@media (max-width: 768px) {
  :root { --header-h: 60px; }
  body { padding-bottom: calc(92px + env(safe-area-inset-bottom)); }
  .header .container { width: calc(100% - 32px); }
  .header__logo-mark { width: 36px; }
  .header__logo-text { font-size: 1rem; letter-spacing: 0.2em; }
  .hero { height: 100svh; min-height: 620px; }
  .hero__overlay { background: linear-gradient(to bottom, rgba(251,250,247,0.75) 0%, rgba(251,250,247,0.3) 60%, rgba(251,250,247,0) 100%); }
  .hero__content { width: calc(100% - 32px); left: 16px; right: 16px; bottom: 84px; top: auto; transform: none; padding: 22px 20px; background: rgba(251, 250, 247, 0.82); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); border: 1px solid rgba(47, 44, 40, 0.08); border-radius: 2px; margin: 0; }
  .hero__en { font-size: 0.62rem; letter-spacing: 0.14em; margin-bottom: 10px; }
  .sp-only-break { display: block; }
  .hero__title { font-size: clamp(1.35rem, 7vw, 1.75rem); line-height: 1.55; letter-spacing: 0.06em; margin-bottom: 16px; }
  .hero__sub { font-size: 0.875rem; line-height: 1.78; margin-bottom: 22px; }
  .hero__sub-pc { display: none; }
  .hero__sub-sp { display: block; }
  .hero__cta { min-width: 176px; min-height: 46px; padding: 12px 30px; display: inline-flex; align-items: center; justify-content: center; font-size: 0.875rem; }
  .hero__indicators { display: none; }
  .flow__steps { flex-direction: column; align-items: center; gap: 24px; }
  .flow__step:not(:last-child) .flow__step-circle::after { display: none; }
  .flow__step { display: flex; align-items: center; gap: 16px; text-align: left; padding: 0; }
  .flow__step-circle { margin: 0; }
  .company__row { flex-direction: column; }
  .company__label { width: 100%; min-width: auto; padding: 14px 20px 4px; }
  .company__value { padding: 4px 20px 14px; }
  .contact__form { padding: 24px; }
  .footer__nav { flex-direction: column; gap: 14px; }
  .area__tags { gap: 8px; }
  .fixed-mobile-cta { position: fixed; left: 18px; right: 18px; bottom: max(14px, env(safe-area-inset-bottom)); z-index: 120; display: flex; align-items: center; justify-content: center; min-height: 50px; padding: 12px 20px; color: var(--color-text); background: rgba(251, 250, 247, 0.95); border: 1px solid rgba(47, 44, 40, 0.14); border-radius: 8px; box-shadow: 0 8px 24px rgba(47, 44, 40, 0.08); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); font-size: 0.875rem; letter-spacing: 0.08em; }
  .mobile-menu.is-open ~ .fixed-mobile-cta { display: none; }
}

@media (max-width: 480px) {
  .hero { min-height: 620px; }
  .opening__logo { font-size: 1.5rem; }
  .section-heading { font-size: 1.2rem; }
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}