:root {
  --green-950: #122d22;
  --green-900: #173b2d;
  --green-800: #204737;
  --green-700: #2f5d48;
  --green-500: #628f69;
  --green-200: #dfeade;
  --green-100: #eef5ed;
  --earth: #6c5843;
  --cream: #f8f6ee;
  --paper: #fffdf8;
  --white: #ffffff;
  --black: #121615;
  --text: #1b2420;
  --muted: #67736c;
  --line: #e2e7df;
  --shadow: 0 22px 56px rgba(23, 59, 45, 0.12);
  --radius: 28px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  color: var(--text);
  background: var(--paper);
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 253, 248, 0.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(18, 45, 34, 0.08);
}
.header-inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--green-950);
}
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green-900), var(--green-500));
  position: relative;
  box-shadow: 0 10px 24px rgba(23,59,45,.18);
}
.brand-mark::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 10px;
  width: 21px;
  height: 16px;
  border-radius: 100% 0 100% 0;
  background: var(--white);
  transform: rotate(-24deg);
}
.brand-name {
  font-size: 18px;
  line-height: 1.2;
}
.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  font-weight: 700;
  color: #42524a;
}
.nav a { opacity: .92; }
.nav a:hover { color: var(--green-800); opacity: 1; }
.nav .nav-contact {
  padding: 11px 20px;
  border-radius: 999px;
  color: var(--white);
  background: var(--green-900);
  box-shadow: 0 12px 26px rgba(23,59,45,.18);
}
.nav .nav-contact:hover { color: var(--white); background: var(--green-800); }

.hero {
  position: relative;
  min-height: 740px;
  overflow: hidden;
  color: var(--white);
  background-image:
    linear-gradient(90deg, rgba(12, 30, 23, 0.92) 0%, rgba(12, 30, 23, 0.78) 36%, rgba(12, 30, 23, 0.24) 72%, rgba(12, 30, 23, 0.10) 100%),
    url("assets/hero-seedling.jpg");
  background-size: cover;
  background-position: center right;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(225, 238, 218, 0.12), transparent 20%),
    linear-gradient(180deg, transparent 0%, rgba(12, 30, 23, 0.72) 100%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
  min-height: 740px;
  display: flex;
  align-items: center;
}
.hero-content { max-width: 720px; padding: 88px 0; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  color: rgba(255,255,255,.84);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.hero-kicker::before { content: ""; width: 44px; height: 1px; background: rgba(255,255,255,.7); }
.hero h1 {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  font-size: clamp(48px, 6vw, 78px);
  line-height: 1.24;
  letter-spacing: -0.05em;
  font-weight: 700;
  text-wrap: balance;
}
.hero-lead {
  margin-top: 30px;
  max-width: 620px;
  color: rgba(255,255,255,.84);
  font-size: 17px;
  line-height: 2.1;
}
.hero-actions {
  margin-top: 42px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 26px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 14px;
  transition: .22s ease;
}
.button-primary {
  color: var(--green-950);
  background: var(--white);
  box-shadow: 0 18px 40px rgba(0,0,0,.18);
}
.button-primary:hover { transform: translateY(-2px); background: var(--green-100); }
.button-ghost { color: var(--white); border: 1px solid rgba(255,255,255,.34); background: rgba(255,255,255,.08); }
.button-ghost:hover { background: rgba(255,255,255,.16); }
.hero-note {
  margin-top: 54px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  max-width: 680px;
  border-top: 1px solid rgba(255,255,255,.2);
  border-bottom: 1px solid rgba(255,255,255,.2);
}
.hero-note div { padding: 18px 20px; border-right: 1px solid rgba(255,255,255,.16); }
.hero-note div:last-child { border-right: 0; }
.hero-note span { display: block; color: rgba(255,255,255,.58); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; }
.hero-note strong { display: block; margin-top: 4px; font-size: 15px; }

.section { padding: 104px 0; }
.section-soft { background: var(--cream); }
.section-dark { background: var(--green-950); color: var(--white); }
.section-head { margin-bottom: 54px; }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--green-700);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.kicker::before { content: ""; width: 28px; height: 1px; background: currentColor; }
.section-dark .kicker { color: var(--green-200); }
h2 {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: -0.04em;
}
h3 { font-size: 22px; line-height: 1.55; font-weight: 800; }
p { color: var(--muted); }
.section-dark p { color: rgba(255,255,255,.74); }

.concept-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 64px;
  align-items: center;
}
.concept-text .lead {
  margin-top: 28px;
  font-size: 17px;
  line-height: 2.15;
}
.concept-points {
  display: grid;
  gap: 14px;
  margin-top: 34px;
}
.concept-point {
  display: flex;
  gap: 16px;
  padding: 20px;
  border-radius: 22px;
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
}
.concept-point .num {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  color: var(--white);
  background: var(--green-800);
  font-weight: 800;
  font-size: 13px;
}
.concept-point p { margin-top: 4px; font-size: 14px; line-height: 1.8; }
.concept-visual {
  position: relative;
  border-radius: 36px;
  overflow: hidden;
  background: var(--green-100);
  box-shadow: var(--shadow);
}
.concept-visual img { width: 100%; height: auto; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 20px;
}
.service-card {
  min-height: 318px;
  padding: 30px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 10px 30px rgba(23,59,45,.06);
  transition: .22s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.service-icon {
  width: 58px;
  height: 58px;
  border-radius: 20px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  background: var(--green-100);
  color: var(--green-800);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .08em;
}

.service-card p { margin-top: 14px; font-size: 14px; line-height: 1.9; }

.growth-wrap {
  position: relative;
  padding: 46px;
  border-radius: 36px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
}
.growth-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 18px;
}
.growth-step {
  position: relative;
  padding: 28px 24px;
  border-radius: 28px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
}
.growth-step::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -22px;
  width: 24px;
  height: 1px;
  background: rgba(255,255,255,.28);
}
.growth-step:last-child::after { display: none; }
.growth-step span {
  display: inline-flex;
  color: var(--green-950);
  background: var(--green-200);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
}
.growth-step h3 { margin-top: 18px; color: var(--white); font-size: 19px; }
.growth-step p { margin-top: 12px; font-size: 14px; line-height: 1.9; }

.strength-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 22px;
}
.strength-card {
  padding: 32px;
  border-radius: 28px;
  background: var(--paper);
  border: 1px solid var(--line);
}
.strength-card .label {
  margin-bottom: 16px;
  color: var(--green-700);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .12em;
}
.strength-card p { margin-top: 14px; font-size: 15px; line-height: 1.9; }

.company-grid {
  display: grid;
  grid-template-columns: 1fr .75fr;
  gap: 42px;
  align-items: start;
}
.company-table {
  overflow: hidden;
  border-radius: 28px;
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: 0 10px 30px rgba(23,59,45,.06);
}
.company-row {
  display: grid;
  grid-template-columns: 190px 1fr;
  border-bottom: 1px solid var(--line);
}
.company-row:last-child { border-bottom: 0; }
.company-key {
  padding: 20px 24px;
  background: #f3f6f1;
  font-weight: 800;
  color: var(--green-900);
}
.company-value {
  padding: 20px 24px;
  color: #506059;
}
.company-side {
  padding: 30px 32px;
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(23,59,45,.08), rgba(23,59,45,.02)),
    var(--green-100);
  border: 1px solid var(--line);
}
.company-side h3 { color: var(--green-900); }
.company-side p { margin-top: 18px; }

.contact {
  position: relative;
  overflow: hidden;
  padding: 98px 0;
  background:
    linear-gradient(135deg, rgba(18,45,34,.92), rgba(47,93,72,.88)),
    url("assets/hero-seedling.jpg");
  background-size: cover;
  background-position: center;
  color: var(--white);
}
.contact-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 36px;
  align-items: center;
}
.contact h2 { color: var(--white); }
.contact p { margin-top: 18px; max-width: 680px; }
.contact-card {
  min-width: 330px;
  padding: 30px;
  border-radius: 28px;
  background: rgba(255,255,255,.94);
  color: var(--green-950);
  box-shadow: var(--shadow);
}
.contact-card small {
  display: block;
  color: var(--muted);
  font-weight: 700;
  margin-bottom: 10px;
}
.email-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--green-900);
  font-weight: 900;
  word-break: break-all;
}
.email-link:hover { color: var(--green-700); }

.footer {
  padding: 36px 0;
  background: var(--green-950);
  color: rgba(255,255,255,.7);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  font-size: 13px;
}
.footer strong { color: var(--white); font-size: 16px; }
.footer-links { display: flex; gap: 20px; flex-wrap: wrap; }
.footer a:hover { color: var(--white); }

@media (max-width: 980px) {
  .nav { display: none; }
  .hero, .hero-inner { min-height: 680px; }
  .hero { background-image: linear-gradient(90deg, rgba(12, 30, 23, 0.90), rgba(12, 30, 23, 0.46)), url("assets/hero-seedling.jpg"); }
  .concept-grid,
  .company-grid,
  .contact-inner { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .growth-steps { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .growth-step::after { display: none; }
  .strength-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .container { width: min(100% - 28px, 1120px); }
  .header-inner { min-height: 70px; }
  .brand-name { font-size: 16px; }
  .hero, .hero-inner { min-height: 620px; }
  .hero-content { padding: 64px 0; }
  .hero h1 { font-size: clamp(38px, 12vw, 56px); }
  .hero-lead { font-size: 15px; line-height: 2; }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
  .hero-note { grid-template-columns: 1fr; }
  .hero-note div { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.16); }
  .hero-note div:last-child { border-bottom: 0; }
  .section { padding: 76px 0; }
  .services-grid,
  .growth-steps { grid-template-columns: 1fr; }
  .growth-wrap { padding: 24px; }
  .company-row { grid-template-columns: 1fr; }
  .company-key, .company-value { padding: 16px 18px; }
  .contact-card { min-width: 0; width: 100%; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}


/* Kollective selected logo: ROOTED SERIF crop */
.brand-logo {
  display: block;
  width: 226px;
  height: auto;
  max-height: 60px;
  object-fit: contain;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.footer-logo {
  display: block;
  width: 190px;
  height: auto;
  max-height: 54px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: .95;
}

.footer-brand small {
  color: rgba(255,255,255,.72);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .04em;
}

@media (max-width: 640px) {
  .brand-logo {
    width: 178px;
    max-height: 48px;
  }
  .footer-logo {
    width: 160px;
  }
}