/* Buttons */
.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: 14px 40px;
  border-radius: 4px;
  font-weight: bold;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border: 2px solid var(--color-primary);
}
.btn-primary:hover {
  background-color: transparent;
  color: var(--color-primary);
}

.btn-secondary {
  background-color: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}
.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* Outline button */
.btn-outline{
  background-color: transparent;
  border: 2px solid var(--color-text);
  color: var(--color-text);
}
.btn-outline:hover{
  background-color: var(--color-text);
  color: var(--color-white);
}

/* Section header */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-header span {
  display: block;
  font-size: 0.875rem;
  color: var(--color-accent);
  font-weight: bold;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.section-header h2 {
  font-size: 2rem;
  color: var(--color-primary);
  font-weight: bold;
}

/* Left aligned variant (was inline style) */
.section-header--left {
  text-align: left;
  margin-bottom: 2rem;
}

/* Card */
.card {
  background: var(--color-white);
  border-radius: 8px;
  padding: var(--spacing-md);
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
  transition: transform 0.3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-5px);
}

/* Header */
.header {
  background-color: rgba(255, 255, 255, 0.95);
  height: var(--header-height);
  display: flex;
  align-items: center;
  box-shadow: 0 2px 15px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.05em;
}
.logo span {
  color: var(--color-accent);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 32px;
  align-items: center;
}

.nav-list a {
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
}

/* hover underline */
.nav-list a:not(.btn)::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--color-accent);
  transition: width 0.3s;
}
.nav-list a:not(.btn):hover::after {
  width: 100%;
}

/* Mobile menu button */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
}
.menu-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  transition: 0.3s;
}

/* Footer */
.footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-col h3 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  color: var(--color-accent);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-logo {
  color: white;
  margin-bottom: 1rem;
}

.footer-desc {
  opacity: 0.7;
  font-size: 0.9rem;
}

.copyright {
  text-align: center;
  font-size: 0.875rem;
  opacity: 0.6;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--spacing-md);
}

/* =========================
  Contact CTA（共通）
========================= */
.contact-cta{
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-lg) 0;
  text-align: center;
}

.contact-cta h2{
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--color-white);
}

.contact-cta p{
  margin-bottom: 2rem;
  opacity: 0.8;
}

.contact-cta .btn{
  background-color: var(--color-accent);
  color: var(--color-white);
  border: 2px solid var(--color-accent);
}
.contact-cta .btn:hover{
  opacity: 0.9;
}