/* ---- TAKUMI Association - lightweight corporate styles ---- */
:root {
  --color-text: #222;
  --color-muted: #666;
  --color-accent: #1a3a5c;
  --color-bg: #fff;
  --color-soft: #f5f7fa;
  --color-border: #e2e6ea;
  --maxw: 880px;
}

* { box-sizing: border-box; }

html { font-size: 16px; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN",
    "Hiragino Sans", Meiryo, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.8;
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---- Header ---- */
.site-header {
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(6px);
  z-index: 100;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 1rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--color-accent);
}
.brand-logo { height: 36px; width: auto; border-radius: 4px; }
.brand-name { font-weight: 700; font-size: 1.05rem; }

.site-nav ul {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav a {
  text-decoration: none;
  color: var(--color-text);
  font-size: 0.92rem;
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover,
.site-nav a.active { border-bottom-color: var(--color-accent); color: var(--color-accent); }
.nav-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; }

/* ---- Main ---- */
.site-main { padding: 2.5rem 0 3.5rem; min-height: 60vh; }
.page-title {
  font-size: 1.7rem;
  color: var(--color-accent);
  border-left: 5px solid var(--color-accent);
  padding-left: 0.75rem;
  margin-bottom: 1.5rem;
}
.page-content h2 {
  font-size: 1.3rem;
  margin-top: 2rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--color-border);
}
.page-content h3 { font-size: 1.1rem; margin-top: 1.5rem; color: var(--color-accent); }
.page-content p { margin: 1rem 0; }
.page-content ul { padding-left: 1.4rem; }
.page-content a { color: var(--color-accent); }

.home .page-content { font-size: 1.05rem; }
.home .wp-block-group {
  background: var(--color-soft);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}

/* ---- Contact form ---- */
.contact-form { margin-top: 1.5rem; }
.form-row { margin-bottom: 1.25rem; }
.form-row label { display: block; font-weight: 600; margin-bottom: 0.4rem; font-size: 0.95rem; }
.form-row .req { color: #c0392b; font-size: 0.85rem; margin-left: 0.25rem; }
.form-row input[type="text"],
.form-row input[type="email"],
.form-row input[type="tel"],
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
}
.form-row textarea { min-height: 160px; resize: vertical; }
.form-consent { display: flex; align-items: flex-start; gap: 0.5rem; background: var(--color-soft); padding: 0.9rem; border-radius: 6px; }
.form-consent input { margin-top: 0.35rem; }
/* honeypot: hidden from humans */
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.btn-submit {
  background: var(--color-accent);
  color: #fff;
  border: none;
  padding: 0.8rem 2.5rem;
  font-size: 1.05rem;
  border-radius: 6px;
  cursor: pointer;
}
.btn-submit:hover { opacity: 0.9; }
.btn-submit:disabled { opacity: 0.5; cursor: not-allowed; }
.form-message { padding: 1rem; border-radius: 6px; margin-bottom: 1.5rem; display: none; }
.form-message.success { display: block; background: #e6f4ea; color: #1e7e34; border: 1px solid #b7dfc2; }
.form-message.error { display: block; background: #fdecea; color: #c0392b; border: 1px solid #f5c6cb; }

/* ---- Footer ---- */
.site-footer {
  background: var(--color-accent);
  color: #fff;
  padding: 2rem 0;
  margin-top: 2rem;
}
.footer-inner { text-align: center; }
.footer-company { font-weight: 700; margin: 0 0 0.75rem; }
.footer-links { list-style: none; padding: 0; margin: 0 0 0.75rem; display: flex; gap: 1rem; justify-content: center; }
.footer-links a { color: #cdd8e4; text-decoration: none; font-size: 0.9rem; }
.footer-links a:hover { color: #fff; }
.copyright { font-size: 0.8rem; color: #a9b8c9; margin: 0; }

/* ---- Responsive ---- */
@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .site-nav ul {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    padding: 0.5rem 1.25rem 1rem;
    gap: 0.5rem;
  }
  body.nav-open .site-nav ul { display: flex; }
}