:root {
  --main: #fcb900;
  --cta: #28a745;
  --text: #222;
  --bg-light: #f9f9f9;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Helvetica Neue', Arial, sans-serif;
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */
.header {
  background: #fff;
  border-bottom: 1px solid #eee;
}
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
}
.logo {
  font-weight: bold;
  font-size: 1.2rem;
}
.nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
  margin: 0;
  padding: 0;
}
.nav a {
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
}
.nav a:hover {
  color: var(--main);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.3s;
}
.btn-primary {
  background: var(--cta);
  color: #fff;
}
.btn-primary:hover {
  background: #218838;
}
.btn-contact {
  background: var(--main);
  color: #111;
}
.btn-contact:hover {
  background: #e0a800;
}

/* Hero */
.hero {
  background: var(--main);
  color: #111;
  text-align: center;
  padding: 100px 0;
}
.hero h1 {
  font-size: clamp(24px, 5vw, 40px);
  margin: 0 0 1rem;
}
.hero p {
  font-size: 1.2rem;
  margin: 0 0 1.5rem;
}

/* Features */
.features {
  padding: 72px 0;
  background: #fff;
}
.features h2 {
  text-align: center;
  margin-bottom: 2rem;
}
.features .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.card {
  background: #fff;
  border: 1px solid #eee;
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  transition: box-shadow 0.3s;
}
.card:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}
.card img {
  max-width: 100%;
  border-radius: 8px;
  margin-bottom: 1rem;
}
.card h3 {
  margin: 0.5rem 0;
}

/* Pricing */
.pricing {
  padding: 72px 0;
  background: var(--bg-light);
}
.pricing h2 {
  text-align: center;
  margin-bottom: 2rem;
}
.pricing .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.plan {
  background: #fff;
  border: 1px solid #eee;
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  position: relative;
}
.plan .price {
  font-size: 1.5rem;
  font-weight: bold;
  margin: 1rem 0;
}
.plan ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}
.plan li {
  margin: 0.5rem 0;
}
.plan.recommended {
  border: 2px solid var(--main);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}
.plan .badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--main);
  color: #111;
  padding: 4px 12px;
  font-size: 0.85rem;
  font-weight: bold;
  border-radius: 20px;
}

/* FAQ */
.faq {
  padding: 72px 0;
  background: #fff;
}
.faq h2 {
  text-align: center;
  margin-bottom: 2rem;
}
.faq details {
  border: 1px solid #eee;
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1rem;
}
.faq summary {
  font-weight: bold;
  cursor: pointer;
}

/* Footer */
.footer {
  background: #111;
  color: #fff;
  padding: 40px 0;
}
.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.footer-links {
  display: flex;
  gap: 16px;
}
.footer-links a {
  color: #fff;
  text-decoration: none;
}
.footer-links a:hover {
  color: var(--main);
}

/* Responsive tweaks */
@media (max-width: 768px) {
  .nav ul {
    display: none; /* 必要ならハンバーガー化可 */
  }
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}