/* 笑顔の種おおいた — egaonotane.hexanest.org
   Earth greens + warm soil for local resource circulation NPO */

:root {
  --bg: #f7f3ea;
  --bg-soft: #ebe4d4;
  --ink: #243026;
  --ink-muted: #5a655c;
  --leaf: #3f7d4e;
  --leaf-deep: #2f5f3b;
  --soil: #a67c52;
  --soil-deep: #8b5e3c;
  --sun: #e8b84a;
  --card: #fffcf6;
  --line: rgba(36, 48, 38, 0.1);
  --shadow: 0 14px 40px rgba(36, 48, 38, 0.08);
  --radius: 18px;
  --radius-sm: 12px;
  --max: 1080px;
  --font: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  --display: "Zen Maru Gothic", "Noto Sans JP", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1000px 480px at 8% -10%, rgba(63, 125, 78, 0.14), transparent 55%),
    radial-gradient(800px 400px at 100% 0%, rgba(232, 184, 74, 0.16), transparent 50%),
    var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--leaf-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--soil-deep);
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.narrow {
  width: min(100% - 2rem, 720px);
}

.center {
  text-align: center;
}

.mt-lg {
  margin-top: 2rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 243, 234, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: inherit;
  text-decoration: none;
  margin-right: auto;
}

.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, #cfe8d2, var(--leaf));
  box-shadow: 0 6px 16px rgba(63, 125, 78, 0.25);
  font-size: 1.15rem;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.logo-text strong {
  font-family: var(--display);
  font-size: 1.02rem;
  font-weight: 700;
}

.logo-text small {
  color: var(--ink-muted);
  font-size: 0.72rem;
}

.nav {
  display: flex;
  gap: 1.05rem;
  align-items: center;
}

.nav a {
  color: var(--ink-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
}

.nav a:hover {
  color: var(--ink);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 10px;
  width: 42px;
  height: 42px;
  font-size: 1.1rem;
  cursor: pointer;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.78rem 1.25rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--leaf), var(--leaf-deep));
  color: #fff !important;
  box-shadow: 0 8px 22px rgba(47, 95, 59, 0.25);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.55);
  border-color: rgba(36, 48, 38, 0.12);
  color: var(--ink) !important;
}

.btn-block {
  width: 100%;
}

.header-cta {
  padding: 0.55rem 1rem;
  font-size: 0.88rem;
}

/* Hero */
.hero {
  position: relative;
  padding: 4.5rem 0 3.5rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(235, 228, 212, 0.7), transparent 70%),
    radial-gradient(circle at 85% 15%, rgba(232, 184, 74, 0.22), transparent 42%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 1rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: rgba(63, 125, 78, 0.12);
  color: var(--leaf-deep);
  font-size: 0.85rem;
  font-weight: 700;
}

.hero h1 {
  font-family: var(--display);
  font-size: clamp(2rem, 5vw, 3.15rem);
  line-height: 1.3;
  margin: 0 0 1.1rem;
}

.lead {
  max-width: 38rem;
  font-size: 1.06rem;
  color: var(--ink-muted);
  margin: 0 0 1.6rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.hero-stats {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  max-width: 720px;
}

.hero-stats li {
  background: rgba(255, 252, 246, 0.88);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.95rem 1rem;
  box-shadow: var(--shadow);
}

.hero-stats strong {
  display: block;
  font-family: var(--display);
  font-size: 1.25rem;
  color: var(--leaf-deep);
  line-height: 1.2;
}

.hero-stats span {
  display: block;
  margin-top: 0.25rem;
  color: var(--ink-muted);
  font-size: 0.85rem;
}

/* Sections */
.section {
  padding: 4rem 0;
}

.section-soft {
  background: linear-gradient(180deg, rgba(235, 228, 212, 0.55), rgba(247, 243, 234, 0.2));
}

.section-label {
  margin: 0 0 0.4rem;
  color: var(--soil);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section h2 {
  font-family: var(--display);
  font-size: clamp(1.55rem, 3vw, 2.05rem);
  margin: 0 0 1rem;
  line-height: 1.35;
}

.section-intro {
  color: var(--ink-muted);
  max-width: 40rem;
  margin: 0 0 1.8rem;
}

.section p {
  color: var(--ink-muted);
}

.grid-2 {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 2rem;
  align-items: start;
}

.cards-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem 1.35rem;
  box-shadow: var(--shadow);
}

.feature .icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(63, 125, 78, 0.1);
  font-size: 1.35rem;
  margin-bottom: 0.8rem;
}

.feature h3,
.contact-card h3 {
  margin: 0 0 0.55rem;
  font-family: var(--display);
  font-size: 1.12rem;
  color: var(--ink);
}

.feature p,
.card p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.96rem;
}

.nature-visual {
  border-radius: calc(var(--radius) + 6px);
  min-height: 300px;
  background:
    radial-gradient(circle at 30% 25%, rgba(255, 255, 255, 0.28), transparent 40%),
    linear-gradient(150deg, #6fa97a, #3f7d4e 45%, #2f5f3b 100%);
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.7rem;
  box-shadow: 0 18px 40px rgba(47, 95, 59, 0.28);
  position: relative;
  overflow: hidden;
}

.nature-visual::after {
  content: "🌱";
  position: absolute;
  right: 0.6rem;
  top: 0.4rem;
  font-size: 6rem;
  opacity: 0.18;
  line-height: 1;
}

.nature-badge {
  display: inline-block;
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 0.7rem;
}

.nature-title {
  font-family: var(--display);
  font-size: clamp(1.8rem, 3vw, 2.3rem);
  font-weight: 700;
  line-height: 1.25;
}

.nature-sub {
  margin: 0.6rem 0 0;
  opacity: 0.92;
  font-size: 0.95rem;
  max-width: 18rem;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 1.2rem 0 1.4rem;
}

.check-list li {
  position: relative;
  padding: 0.45rem 0 0.45rem 1.8rem;
  color: var(--ink-muted);
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0.4rem;
  width: 1.3rem;
  height: 1.3rem;
  border-radius: 50%;
  background: rgba(63, 125, 78, 0.14);
  color: var(--leaf-deep);
  display: grid;
  place-items: center;
  font-size: 0.75rem;
  font-weight: 700;
}

.callout {
  background: rgba(166, 124, 82, 0.1);
  border: 1px solid rgba(166, 124, 82, 0.2);
  border-left: 4px solid var(--soil);
  border-radius: var(--radius-sm);
  padding: 1rem 1.1rem;
}

.callout strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--soil-deep);
}

.callout p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.contact-box {
  margin: 1.4rem 0 0;
  padding: 1.2rem 1.3rem;
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(63, 125, 78, 0.1), rgba(232, 184, 74, 0.12));
  border: 1px solid var(--line);
}

.contact-label {
  margin: 0;
  font-size: 0.85rem;
  color: var(--ink-muted);
  font-weight: 600;
}

.contact-mail {
  display: inline-block;
  margin: 0.25rem 0 0.35rem;
  font-family: var(--display);
  font-size: clamp(1.15rem, 2.6vw, 1.45rem);
  font-weight: 700;
  color: var(--leaf-deep);
  text-decoration: none;
  word-break: break-all;
}

.contact-mail:hover {
  text-decoration: underline;
}

.contact-note {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.9rem;
}

.plain-list {
  margin: 0 0 1.2rem;
  padding-left: 1.1rem;
  color: var(--ink-muted);
}

.plain-list li {
  margin: 0.35rem 0;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #243026;
  color: rgba(255, 252, 246, 0.9);
  padding: 2.4rem 0 2rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.site-footer p {
  margin: 0.35rem 0 0;
  color: rgba(255, 252, 246, 0.68);
  font-size: 0.92rem;
}

.site-footer a {
  color: #e8c97a;
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.footer-meta {
  text-align: right;
}

.footer-meta .copy {
  margin-top: 0.4rem;
  font-size: 0.85rem;
  opacity: 0.75;
}

@media (max-width: 900px) {
  .grid-2,
  .cards-2 {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(247, 243, 234, 0.98);
    border-bottom: 1px solid var(--line);
    padding: 0.5rem 1rem 1rem;
  }

  .nav.open {
    display: flex;
  }

  .nav a {
    padding: 0.75rem 0.4rem;
    border-bottom: 1px solid var(--line);
  }

  .nav-toggle {
    display: inline-grid;
    place-items: center;
  }

  .header-cta {
    display: none;
  }

  .footer-meta {
    text-align: left;
  }

  .hero {
    padding-top: 3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn {
    transition: none;
  }
}