/* ============================================================
   RITA — Site Styles
   Palette: white / black / deep green / light gray
   ============================================================ */

:root {
  --color-bg: #ffffff;
  --color-bg-soft: #faf9f5;
  --color-bg-alt: #f2f1ec;
  --color-line: #e3e2dc;
  --color-line-soft: #ececea;
  --color-text: #1a1a1a;
  --color-text-soft: #555a55;
  --color-text-mute: #8a8f88;
  --color-green: #1d4737;
  --color-green-deep: #143126;
  --color-green-soft: #e7ede9;
  --color-green-mist: #cfe1d6;
  --color-black: #0d0f0d;

  --font-jp: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  --font-serif: "Cormorant Garamond", "Times New Roman", serif;

  --container: 1180px;
  --gutter: clamp(20px, 4vw, 44px);

  --header-height: 96px;
  --header-height-mobile: 68px;

  --radius: 6px;
  --radius-btn: 6px;
  --shadow-soft: 0 8px 28px rgba(20, 30, 24, 0.05);
  --shadow-hover: 0 12px 32px rgba(20, 30, 24, 0.07);

  --ease: cubic-bezier(.2,.7,.2,1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-jp);
  font-weight: 400;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }

a {
  color: inherit;
  text-decoration: none;
  transition: color .25s var(--ease), opacity .25s var(--ease);
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* anchor scroll offset for fixed header */
section[id] {
  scroll-margin-top: calc(var(--header-height) + 12px);
}
@media (max-width: 720px) {
  section[id] {
    scroll-margin-top: calc(var(--header-height-mobile) + 8px);
  }
}

/* ----------- Header ----------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.86);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: background .3s var(--ease), border-color .3s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(255,255,255,0.96);
  border-bottom-color: var(--color-line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  line-height: 0;
}
.brand-logo {
  height: 56px;
  width: 120px;
  object-fit: cover;
  object-position: center;
  display: block;
}

.nav { margin-left: auto; }
.nav ul {
  display: flex;
  gap: 36px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav a {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--color-text);
  position: relative;
  padding: 6px 0;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--color-green);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform .35s var(--ease);
}
.nav a:hover { color: var(--color-green-deep); }
.nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left center;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  background: var(--color-green);
  color: #fff;
  border-radius: var(--radius-btn);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .1em;
  transition: background .25s var(--ease), transform .25s var(--ease);
}
.header-cta:hover {
  background: var(--color-green-deep);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  background: transparent;
  border: 0;
  padding: 0;
  cursor: pointer;
  position: relative;
}
.nav-toggle span {
  display: block;
  position: absolute;
  left: 9px;
  width: 22px;
  height: 1.5px;
  background: var(--color-black);
  transition: transform .3s var(--ease), opacity .2s var(--ease), top .3s var(--ease);
}
.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 20px; }
.nav-toggle span:nth-child(3) { top: 26px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { top: 20px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { top: 20px; transform: rotate(-45deg); }

/* ----------- Hero ----------- */
.hero {
  position: relative;
  padding: clamp(120px, 13vw, 150px) 0 clamp(80px, 11vw, 130px);
  overflow: hidden;
  background:
    radial-gradient(900px 500px at 100% 0%, rgba(29,71,55,0.05), transparent 60%),
    linear-gradient(180deg, var(--color-bg-soft) 0%, #ffffff 100%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: clamp(40px, 5vw, 72px);
  align-items: center;
}
.hero-text { max-width: 540px; }

.eyebrow {
  font-family: var(--font-serif);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: .35em;
  color: var(--color-green);
  text-transform: uppercase;
  margin: 0 0 32px;
}
.hero-title {
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: .04em;
  color: var(--color-black);
  margin: 0 0 32px;
}
.hero-sub {
  font-size: clamp(14.5px, 1.3vw, 16px);
  line-height: 2;
  color: var(--color-text-soft);
  margin: 0 0 48px;
}

.hero-media {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 14px;
  height: clamp(380px, 42vw, 520px);
}
.hero-img {
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  position: relative;
  box-shadow: 0 6px 24px rgba(20, 30, 24, 0.06);
}
.hero-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 1.4s var(--ease);
}
@media (hover: hover) {
  .hero-img:hover img { transform: scale(1.05); }
}
.hero-img.img-web   { grid-row: 1 / span 2; grid-column: 1; }
.hero-img.img-golf  { grid-row: 1; grid-column: 2; }
.hero-img.img-field { grid-row: 2; grid-column: 2; }
.hero-img.img-field img { object-position: 60% center; }

/* ----------- Buttons ----------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-width: 220px;
  height: 56px;
  padding: 0 32px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .14em;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s var(--ease), background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.btn-primary {
  background: var(--color-green);
  color: #fff;
}
.btn-primary:hover {
  background: var(--color-green-deep);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(20, 49, 38, 0.18);
}
.btn-light {
  background: #fff;
  color: var(--color-green-deep);
}
.btn-light:hover {
  background: var(--color-green-mist);
  transform: translateY(-2px);
}
.btn span[aria-hidden],
.header-cta span[aria-hidden] {
  display: inline-block;
  transition: transform .3s var(--ease);
}
.btn:hover span[aria-hidden],
.header-cta:hover span[aria-hidden] {
  transform: translateX(4px);
}

/* ----------- Section common ----------- */
.section {
  padding: clamp(80px, 10vw, 140px) 0;
}
.section-head {
  text-align: center;
  margin-bottom: clamp(50px, 7vw, 84px);
}
.section-eyebrow {
  font-family: var(--font-serif);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: .4em;
  color: var(--color-green);
  text-transform: uppercase;
  margin: 0 0 18px;
}
.section-eyebrow.light { color: var(--color-green-mist); }
.section-title {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--color-black);
  margin: 0 0 20px;
  line-height: 1.55;
}
.section-title.light { color: #fff; }
.section-lead {
  font-size: 15px;
  color: var(--color-text-soft);
  margin: 0;
}

/* ----------- Services ----------- */
.services { background: var(--color-bg); }
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  position: relative;
  padding: 56px 36px 48px;
  background: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  text-align: center;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
  border-color: var(--color-green-mist);
}
.service-card:hover .service-icon {
  background: var(--color-green);
  color: #ffffff;
}
.service-card:hover .service-title {
  color: var(--color-green-deep);
}

.service-icon {
  width: 64px; height: 64px;
  margin: 0 auto 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-green);
  border-radius: 50%;
  background: var(--color-green-soft);
  transition: background .4s var(--ease), color .4s var(--ease);
}
.service-icon svg { width: 32px; height: 32px; }
.service-title {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--color-black);
  margin: 0 0 18px;
  line-height: 1.5;
  transition: color .35s var(--ease);
}
.service-text {
  font-size: 14.5px;
  color: var(--color-text-soft);
  margin: 0;
  line-height: 2;
  text-align: left;
}

/* ----------- About ----------- */
.about { background: var(--color-bg-alt); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: center;
}
.about-img {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-green-soft);
  aspect-ratio: 4 / 5;
}
.about-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-text .section-eyebrow,
.about-text .section-title {
  text-align: left;
}
.about-text .section-title { margin-bottom: 28px; }
.about-body {
  font-size: 15px;
  color: var(--color-text-soft);
  margin: 0 0 20px;
  line-height: 2;
}
.about-body + .about-body { margin-top: 0; }

.about-meta {
  margin: 40px 0 0;
  padding: 28px 0 0;
  border-top: 1px solid var(--color-line);
  display: grid;
  gap: 18px;
}
.about-meta > div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  align-items: baseline;
}
.about-meta dt {
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--color-green);
  font-weight: 500;
  margin: 0;
}
.about-meta dd {
  margin: 0;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.85;
}

/* ----------- Contact ----------- */
.contact {
  background: var(--color-bg);
  padding-top: clamp(60px, 8vw, 100px);
  padding-bottom: clamp(80px, 10vw, 140px);
}
.contact-box {
  background: var(--color-green-deep);
  color: #fff;
  border-radius: var(--radius);
  padding: clamp(48px, 6vw, 88px) clamp(32px, 5vw, 80px);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
  position: relative;
  overflow: hidden;
}
.contact-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(500px 250px at 100% 0%, rgba(255,255,255,0.06), transparent 60%);
  pointer-events: none;
}
.contact-text,
.contact-cta { position: relative; z-index: 1; }
.contact-text .section-eyebrow,
.contact-text .section-title { text-align: left; }
.contact-lead {
  font-size: 14.5px;
  color: rgba(255,255,255,0.78);
  margin: 0;
  line-height: 2;
}
.contact-cta { text-align: right; }

/* ----------- Footer ----------- */
.site-footer {
  background: #ffffff;
  border-top: 1px solid var(--color-line);
  padding: 32px 0;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}
.footer-logo {
  height: 40px;
  width: 88px;
  object-fit: cover;
  object-position: center;
  display: block;
}
.footer-copy {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--color-text-mute);
  margin: 0;
}

/* ----------- Hero load-in animation ----------- */
.hero-text > .eyebrow,
.hero-text > .hero-title,
.hero-text > .hero-sub,
.hero-text > .btn,
.hero-img {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 1s var(--ease), transform 1s var(--ease);
}
body.is-loaded .hero-text > .eyebrow      { transition-delay: 0.10s; opacity: 1; transform: none; }
body.is-loaded .hero-text > .hero-title   { transition-delay: 0.20s; opacity: 1; transform: none; }
body.is-loaded .hero-text > .hero-sub     { transition-delay: 0.30s; opacity: 1; transform: none; }
body.is-loaded .hero-text > .btn          { transition-delay: 0.40s; opacity: 1; transform: none; }
body.is-loaded .hero-img.img-web          { transition-delay: 0.25s; opacity: 1; transform: none; }
body.is-loaded .hero-img.img-golf         { transition-delay: 0.40s; opacity: 1; transform: none; }
body.is-loaded .hero-img.img-field        { transition-delay: 0.55s; opacity: 1; transform: none; }

/* ----------- Scroll reveal ----------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ----------- Responsive ----------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-text { max-width: none; }
  .hero-media { height: clamp(320px, 60vw, 460px); }
  .about-grid { grid-template-columns: 1fr; }
  .about-img { aspect-ratio: 16 / 10; max-width: 560px; }
  .contact-box { grid-template-columns: 1fr; }
  .contact-cta { text-align: left; }
}

@media (max-width: 860px) {
  .service-grid { grid-template-columns: 1fr; gap: 18px; }
  .header-cta { display: none; }
}

@media (max-width: 720px) {
  .header-inner { height: var(--header-height-mobile); }
  .brand-logo { height: 38px; width: 82px; }
  .nav-toggle { display: block; }
  .nav {
    position: fixed;
    inset: var(--header-height-mobile) 0 auto 0;
    background: #ffffff;
    border-bottom: 1px solid var(--color-line);
    box-shadow: 0 8px 24px rgba(20, 30, 24, 0.04);
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s var(--ease);
    margin-left: 0;
  }
  .nav.is-open { max-height: 400px; }
  .nav ul {
    flex-direction: column;
    gap: 0;
    padding: 12px 24px 24px;
  }
  .nav li { border-bottom: 1px solid var(--color-line-soft); }
  .nav li:last-child { border-bottom: 0; }
  .nav a {
    display: block;
    padding: 18px 4px;
    font-size: 15px;
    color: var(--color-text);
  }
  .nav a::after { display: none; }

  .hero { padding-top: 110px; }
  .hero-sub { margin-bottom: 36px; }
  .btn { width: 100%; min-width: 0; }

  .hero-media { gap: 10px; }
  .service-card { padding: 44px 28px 36px; }
  .about-meta > div { grid-template-columns: 1fr; gap: 4px; }

  .footer-inner { justify-content: center; text-align: center; }
  .footer-logo { height: 32px; width: 70px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal,
  .hero-text > *,
  .hero-img { opacity: 1; transform: none; }
}