/* ========================================
   BOROIMISE — top.css
   トップページ (index.html) 固有スタイル
   ======================================== */

body {
  margin: 0;
  padding: 0;
  font-family: var(--f-sans);
  background-color: var(--c-bg);
  color: var(--c-navy);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-image: linear-gradient(135deg, rgba(250, 248, 245, 0.9) 0%, rgba(250, 248, 245, 0.7) 100%), url('../images/atelier.png');
  background-size: cover;
  background-position: center;
}

h1 {
  font-family: var(--f-serif);
  font-size: 3rem;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.sub {
  font-size: 1.1rem;
  letter-spacing: 0.2em;
  margin-bottom: 60px;
  color: #555;
}

.links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  display: inline-block;
  padding: 16px 40px;
  background: var(--c-theme-regular);
  color: #fff;
  text-decoration: none;
  border-radius: 40px;
  font-weight: 500;
  transition: all 0.3s ease;
  font-size: 1.1rem;
  border: 1px solid var(--c-theme-regular);
}

.btn:hover {
  background: var(--c-theme-trial); /* 体験申込みカラーへ */
  border-color: var(--c-theme-trial);
  transform: translateY(-2px);
  color: #fff;
}

.btn.disabled {
  background: transparent;
  color: var(--c-theme-design); /* デザイン事務所は専用色へ */
  cursor: not-allowed;
  border-color: var(--c-theme-design);
}

.btn.disabled:hover {
  transform: none;
  background: transparent;
  color: var(--c-theme-design);
  border-color: var(--c-theme-design);
}

.btn span {
  display: block;
  font-size: 0.8rem;
  opacity: 0.8;
  margin-top: 4px;
}