/* ========================================
   モヤハレ LP — style.css
   ======================================== */

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans JP', 'Inter', sans-serif;
  color: #3a3a5c;
  background: #ffffff;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ========== Header ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.header__inner {
  max-width: 1000px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.1rem;
  color: #2a2a4a;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header__login-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: #5a5a7a;
  transition: color 0.2s;
}

.header__login-link:hover {
  color: #667eea;
}

.header__cta-btn {
  padding: 8px 20px;
  border-radius: 24px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  transition: opacity 0.2s;
}

.header__cta-btn:hover {
  opacity: 0.85;
}

/* ========== Hero ========== */
.hero {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  min-height: 100dvh;
  background: linear-gradient(170deg, #f0edff 0%, #ffffff 40%, #e8f4ff 70%, #f5f0ff 100%);
  text-align: center;
  padding: 60px 20px;
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__logo {
  margin: 0 auto 36px;
  filter: drop-shadow(0 4px 24px rgba(102, 126, 234, 0.25));
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero__title {
  font-size: 2.4rem;
  font-weight: 800;
  line-height: 1.5;
  margin-bottom: 20px;
  color: #2a2a4a;
}

.hero__subtitle {
  font-size: 1.1rem;
  color: #7a7a9a;
  margin-bottom: 44px;
}

.hero__btn {
  display: inline-block;
  padding: 16px 48px;
  border-radius: 32px;
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 700;
  box-shadow: 0 4px 20px rgba(102, 126, 234, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}

.hero__btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(102, 126, 234, 0.5);
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 768px) {
  .hero__title {
    font-size: 1.8rem;
  }

  .hero__subtitle {
    font-size: 1rem;
  }

}

@media (max-width: 480px) {
  .hero__logo {
    width: 80px;
    height: 80px;
  }

  .hero__title {
    font-size: 1.5rem;
  }

  .hero__btn {
    padding: 14px 36px;
    font-size: 1rem;
  }
}