/* =========================================
   甘水兎羽 LP - Style Sheet
   Design: Light taste with pink/green accents
   ========================================= */

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

:root {
  --bg: #FAFAFA;
  --text: #2D2D2D;
  --text-light: #6B6B6B;
  --accent-pink: #E8B4B8;
  --accent-green: #2D6A4F;
  --warm-beige: #F0E6D3;
  --border: #E8E8E8;
  --card-bg: #FFFFFF;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Noto Serif JP', 'Georgia', serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.8;
  overflow-x: hidden;
}

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

a {
  color: var(--accent-green);
  text-decoration: none;
  transition: opacity 0.3s ease;
}

a:hover {
  opacity: 0.7;
}

/* --- Layout --- */
.section {
  padding: 80px 24px;
  max-width: 960px;
  margin: 0 auto;
}

.section-divider {
  width: 60px;
  height: 1px;
  background-color: var(--accent-pink);
  margin: 0 auto 40px;
}

.section-title {
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-align: center;
  color: var(--text-light);
  margin-bottom: 12px;
}

.section-title-en {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-align: center;
  color: var(--accent-pink);
  text-transform: uppercase;
  margin-bottom: 48px;
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 24px;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at center bottom, rgba(232,180,184,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-image {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  border: 3px solid var(--accent-pink);
  margin-bottom: 40px;
  box-shadow: 0 8px 32px rgba(232,180,184,0.2);
}

.hero-name {
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  margin-bottom: 8px;
  color: var(--text);
}

.hero-name-en {
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.35em;
  color: var(--text-light);
  margin-bottom: 32px;
  text-transform: uppercase;
}

.hero-tagline {
  font-size: 1.15rem;
  font-weight: 400;
  line-height: 2;
  color: var(--text);
  margin-bottom: 12px;
}

.hero-subtitle {
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  color: var(--accent-pink);
  font-style: italic;
}

.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--text-light);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  animation: fadeInUp 2s ease infinite;
}

.hero-scroll::after {
  content: '';
  width: 1px;
  height: 32px;
  background: var(--accent-pink);
  margin-top: 8px;
}

@keyframes fadeInUp {
  0%, 100% { opacity: 0.3; transform: translateX(-50%) translateY(0); }
  50% { opacity: 1; transform: translateX(-50%) translateY(-4px); }
}

/* --- About Section --- */
.about {
  background-color: var(--card-bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about-content {
  display: flex;
  align-items: flex-start;
  gap: 48px;
}

.about-image-wrap {
  flex-shrink: 0;
  width: 240px;
}

.about-image {
  width: 100%;
  border-radius: 4px;
}

.about-text {
  flex: 1;
}

.about-role {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--accent-green);
  margin-bottom: 16px;
  font-weight: 400;
}

.about-description {
  font-size: 0.95rem;
  line-height: 2.2;
  margin-bottom: 24px;
  color: var(--text);
}

.about-quote {
  font-size: 0.9rem;
  color: var(--text-light);
  border-left: 2px solid var(--accent-pink);
  padding-left: 16px;
  font-style: italic;
  line-height: 2;
}

/* --- Works Section --- */
.works-card {
  display: flex;
  align-items: center;
  gap: 48px;
  background: var(--card-bg);
  border-radius: 8px;
  padding: 40px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.04);
  border: 1px solid var(--border);
}

.works-cover {
  flex-shrink: 0;
  width: 180px;
  border-radius: 4px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.12);
}

.works-info {
  flex: 1;
}

.works-title-ja {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: 0.1em;
}

.works-title-en {
  font-size: 0.75rem;
  color: var(--text-light);
  letter-spacing: 0.2em;
  margin-bottom: 20px;
}

.works-description {
  font-size: 0.9rem;
  line-height: 2;
  margin-bottom: 24px;
  color: var(--text);
}

.works-label {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--accent-green);
  border: 1px solid var(--accent-green);
  padding: 2px 12px;
  border-radius: 2px;
  margin-bottom: 16px;
}

.btn-kindle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--accent-green);
  color: #FFFFFF;
  padding: 12px 28px;
  border-radius: 4px;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  transition: background-color 0.3s ease;
}

.btn-kindle:hover {
  background-color: #245840;
  opacity: 1;
}

/* --- World Section --- */
.world {
  background-color: var(--card-bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.world-description {
  text-align: center;
  font-size: 0.95rem;
  line-height: 2.2;
  max-width: 640px;
  margin: 0 auto 56px;
  color: var(--text);
}

.world-roadmap {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.world-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 16px;
  min-width: 100px;
}

.world-step-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--warm-beige);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--accent-green);
  border: 1px solid var(--border);
}

.world-step-active .world-step-icon {
  background-color: var(--accent-green);
  color: #FFFFFF;
  border-color: var(--accent-green);
}

.world-step-label {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--text-light);
  text-align: center;
}

.world-step-active .world-step-label {
  color: var(--accent-green);
  font-weight: 600;
}

.world-arrow {
  color: var(--accent-pink);
  font-size: 0.8rem;
  margin-top: -16px;
}

/* --- Links Section --- */
.links-grid {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.link-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 28px 36px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: all 0.3s ease;
  min-width: 140px;
}

.link-card:hover {
  border-color: var(--accent-pink);
  box-shadow: 0 4px 16px rgba(232,180,184,0.15);
  opacity: 1;
  transform: translateY(-2px);
}

.link-icon {
  font-size: 1.6rem;
  color: var(--text);
}

.link-label {
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  color: var(--text-light);
}

/* --- Footer --- */
.footer {
  text-align: center;
  padding: 40px 24px;
  border-top: 1px solid var(--border);
}

.footer-text {
  font-size: 0.7rem;
  color: var(--text-light);
  letter-spacing: 0.15em;
}

/* --- Scroll Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .section {
    padding: 60px 20px;
  }

  .hero-name {
    font-size: 1.8rem;
  }

  .hero-image {
    width: 160px;
    height: 160px;
  }

  .about-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .about-image-wrap {
    width: 180px;
  }

  .about-quote {
    text-align: left;
  }

  .works-card {
    flex-direction: column;
    text-align: center;
    padding: 32px 24px;
  }

  .works-cover {
    width: 140px;
  }

  .world-roadmap {
    gap: 8px;
  }

  .world-step {
    min-width: 80px;
    padding: 12px 8px;
  }

  .world-arrow {
    display: none;
  }

  .links-grid {
    gap: 16px;
  }

  .link-card {
    padding: 20px 28px;
    min-width: 120px;
  }
}

@media (max-width: 480px) {
  .hero-name {
    font-size: 1.5rem;
  }

  .hero-tagline {
    font-size: 1rem;
  }

  .works-title-ja {
    font-size: 1.2rem;
  }

  .links-grid {
    flex-direction: column;
    align-items: center;
  }

  .link-card {
    width: 100%;
    max-width: 240px;
  }
}