/* スキマ技研合同会社 - サイトスタイル */
:root {
  --color-primary: #2563eb;
  --color-text: #1f2937;
  --color-text-muted: #6b7280;
  --color-bg: #ffffff;
  --color-bg-alt: #f9fafb;
  --font-sans: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  --max-width: 960px;
  --spacing: 1.5rem;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
}

.main {
  min-height: 60vh;
}

/* Header */
.header {
  background: var(--color-bg);
  border-bottom: 1px solid #e5e7eb;
}
.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing) 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-primary);
  text-decoration: none;
}
.nav {
  display: flex;
  gap: 1.5rem;
}
.nav-link {
  color: var(--color-text);
  text-decoration: none;
}
.nav-link:hover {
  color: var(--color-primary);
}

/* Hero */
.hero {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  padding: 4rem 1rem;
}
.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}
.hero-title {
  margin: 0 0 1rem;
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text);
}
.hero-lead {
  margin: 0;
  font-size: 1.125rem;
  color: var(--color-text-muted);
}

/* Section */
.section {
  padding: 3rem 1rem;
}
.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.section h2 {
  margin: 0 0 1rem;
  font-size: 1.5rem;
  font-weight: 600;
}
.section p {
  margin: 0 0 1rem;
  color: var(--color-text-muted);
}
.btn {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  background: var(--color-primary);
  color: #fff !important;
  text-decoration: none;
  border-radius: 6px;
  font-weight: 500;
}
.btn:hover {
  opacity: 0.9;
}

/* Page (single) */
.page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1rem;
}
.page-title {
  margin: 0 0 1.5rem;
  font-size: 1.75rem;
  font-weight: 700;
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: 0.5rem;
}
.page-content {
  line-height: 1.8;
}
.page-content h2 { font-size: 1.25rem; margin: 2rem 0 0.75rem; }
.page-content p { margin: 0 0 1rem; }
.page-content ul { margin: 0 0 1rem; padding-left: 1.5rem; }

/* Footer */
.footer {
  background: var(--color-bg-alt);
  border-top: 1px solid #e5e7eb;
  margin-top: 3rem;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing) 1rem;
  text-align: center;
}
.copyright {
  margin: 0;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

@media (max-width: 640px) {
  .header-inner { flex-direction: column; gap: 1rem; }
  .nav { flex-wrap: wrap; justify-content: center; }
  .hero-title { font-size: 1.5rem; }
}