body {
  margin: 0;
  background: #f7f7f7;
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
  color: #333;
}

/* ========================= */
/* HEADER（index.php と統一） */
/* ========================= */
header {
  background: #d70000;
  color: white;
  padding: 1em;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.6em;
  font-weight: bold;
}

nav a {
  color: white;
  margin-left: 1em;
  text-decoration: none;
}

nav .cta {
  background: white;
  color: #d70000;
  padding: 0.5em 1em;
  border-radius: 4px;
  font-weight: bold;
}

/* ========================= */
/* PLANS WRAPPER */
/* ========================= */
.plans {
  max-width: 900px;
  margin: 2em auto;
  padding: 0 1em;
}

/* PLAN CARD */
.plan {
  background: white;
  padding: 1.5em;
  margin-bottom: 1.5em;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  border-left: 6px solid #d70000;
}

.plan.free {
  border-left-color: #999;
}

.plan.contact {
  border-left-color: #555;
}

.plan h2 {
  margin-top: 0;
  font-size: 1.4em;
}

.plan ul {
  padding-left: 1.2em;
  margin: 1em 0;
}

.plan ul li {
  margin: 0.4em 0;
}

/* PRICE */
.price {
  font-size: 1.6em;
  font-weight: bold;
  margin-top: 1em;
  color: #d70000;
}

/* BUTTONS */
.btn, .contact-btn {
  display: inline-block;
  background: #d70000;
  color: white;
  padding: 0.8em 1.2em;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  margin-top: 1em;
  transition: 0.2s;
}

.btn:hover, .contact-btn:hover {
  background: #b80000;
}

/* POP INFO SECTION */
.pop-info {
  max-width: 900px;
  margin: 2em auto;
  padding: 2em 1em;
  background: white;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  text-align: center;
  border-left: 6px solid #d70000;
}

.pop-info h2 {
  margin-top: 0;
  font-size: 1.5em;
}

.pop-info ul {
  list-style: none;
  padding: 0;
  margin: 1em 0;
}

.pop-info ul li {
  margin: 0.4em 0;
}

.pop-info .btn {
  margin-top: 1.2em;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 1.5em;
  background: #eee;
  margin-top: 2em;
  color: #555;
}