/* ===========================
   Re:Play - CSS Variables
   =========================== */
:root {
  --color-primary: #1B6CA8;
  --color-primary-dark: #145385;
  --color-accent: #F4A61F;
  --color-accent-dark: #d48c0a;
  --color-text: #1A1A1A;
  --color-text-light: #555;
  --color-bg: #fff;
  --color-bg-light: #F7F9FC;
  --color-bg-dark: #0D1B2A;
  --color-border: #e2e8f0;
  --color-white: #fff;

  --font-en: 'Oswald', sans-serif;
  --font-ja: 'Noto Sans JP', sans-serif;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.16);

  --transition: 0.3s ease;
  --container-width: 1120px;
}

/* ===========================
   Reset & Base
   =========================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-ja);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }

/* ===========================
   Layout
   =========================== */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

/* ===========================
   Typography Utilities
   =========================== */
.section-label {
  display: block;
  font-family: var(--font-en);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-ja);
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 24px;
}

.section-lead {
  font-size: 1.05rem;
  color: var(--color-text-light);
  max-width: 640px;
  margin-bottom: 56px;
}

/* ===========================
   Reveal Animation
   =========================== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ===========================
   CTA Button
   =========================== */
.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 700;
  transition: background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.cta-btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.cta-btn:active { transform: translateY(0); }

.cta-line {
  background: #06C755;
  color: #fff;
}
.cta-line:hover { background: #05a847; }

.cta-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.cta-outline:hover { background: var(--color-primary); color: #fff; }

.cta-large {
  padding: 18px 48px;
  font-size: 1.1rem;
  min-width: 280px;
}

/* ===========================
   Header
   =========================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
}

.site-logo {
  font-family: var(--font-en);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.02em;
  transition: color var(--transition);
}
.site-logo span { color: var(--color-accent); }
.site-header.scrolled .site-logo { color: var(--color-text); }

.global-nav ul {
  display: flex;
  gap: 32px;
}
.global-nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--transition);
}
.global-nav a:hover { color: var(--color-white); }
.site-header.scrolled .global-nav a { color: var(--color-text-light); }
.site-header.scrolled .global-nav a:hover { color: var(--color-primary); }

.header-cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  background: #06C755;
  color: #fff;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 700;
  transition: background var(--transition);
  white-space: nowrap;
}
.header-cta:hover { background: #05a847; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 32px;
  padding: 4px;
}
.hamburger span {
  display: block;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.site-header.scrolled .hamburger span { background: var(--color-text); }

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===========================
   Hero
   =========================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.06);
  animation: heroScale 8s ease-in-out forwards;
}

@keyframes heroScale {
  to { transform: scale(1); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(13, 27, 42, 0.6) 0%,
    rgba(13, 27, 42, 0.45) 60%,
    rgba(13, 27, 42, 0.7) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 24px;
  max-width: 860px;
  animation: heroFadeUp 1s ease 0.3s both;
}

@keyframes heroFadeUp {
  from { opacity: 0; transform: translateY(32px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-sub {
  font-family: var(--font-en);
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0.25em;
  color: var(--color-accent);
  margin-bottom: 20px;
  text-transform: uppercase;
}

.hero-title {
  font-size: clamp(2rem, 5.5vw, 3.8rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-white);
  margin-bottom: 24px;
}

.hero-desc {
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.9;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-scroll-link {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color var(--transition);
}
.hero-scroll-link:hover { color: #fff; }

.hero-scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}
.hero-scroll-indicator span {
  display: block;
  width: 24px;
  height: 40px;
  border: 2px solid rgba(255,255,255,0.5);
  border-radius: 12px;
  position: relative;
}
.hero-scroll-indicator span::before {
  content: '';
  display: block;
  width: 4px;
  height: 8px;
  background: #fff;
  border-radius: 2px;
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollDown 1.6s ease-in-out infinite;
}
@keyframes scrollDown {
  0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
  50% { opacity: 0.3; transform: translateX(-50%) translateY(10px); }
}

/* ===========================
   Concept
   =========================== */
.concept-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.concept-img img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}
.concept-text p {
  color: var(--color-text-light);
  margin-bottom: 20px;
}
.concept-text p:last-child { margin-bottom: 0; }
.concept-text .section-title { margin-top: 12px; }

/* ===========================
   Features
   =========================== */
.features {
  background: var(--color-bg-light);
}
.features .section-label,
.features .section-title {
  text-align: center;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 56px;
}

.feature-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  font-family: var(--font-en);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* ===========================
   Activity
   =========================== */
.activity .section-label,
.activity .section-title,
.activity .section-lead {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.activity-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.activity-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: var(--color-white);
  transition: transform var(--transition), box-shadow var(--transition);
}
.activity-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.activity-img {
  overflow: hidden;
  height: 220px;
}
.activity-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.activity-card:hover .activity-img img { transform: scale(1.05); }

.activity-body {
  padding: 24px;
}
.activity-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.activity-body p {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ===========================
   Voice
   =========================== */
.voice {
  background: var(--color-bg-light);
}
.voice .section-label,
.voice .section-title {
  text-align: center;
}

.voice-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 56px;
}

.voice-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.voice-img {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--color-accent);
  flex-shrink: 0;
}
.voice-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.voice-body blockquote {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.85;
  font-style: italic;
  border-left: 3px solid var(--color-accent);
  padding-left: 14px;
  margin-bottom: 12px;
}

.voice-body cite {
  font-size: 0.825rem;
  font-weight: 700;
  color: var(--color-text);
  font-style: normal;
}

/* ===========================
   Price
   =========================== */
.price .section-label,
.price .section-title,
.price .section-lead {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.price-card {
  background: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 40px 28px;
  text-align: center;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}
.price-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.price-card--featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: scale(1.03);
}
.price-card--featured:hover {
  transform: scale(1.03) translateY(-4px);
}

.price-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 20px;
  letter-spacing: 0.05em;
}

.price-plan {
  font-family: var(--font-en);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.price-amount {
  font-size: 1rem;
  color: var(--color-text-light);
  margin-bottom: 28px;
}
.price-amount span {
  font-family: var(--font-en);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
}

.price-features {
  text-align: left;
  margin-bottom: 32px;
}
.price-features li {
  font-size: 0.9rem;
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.price-features li::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ===========================
   FAQ
   =========================== */
.faq {
  background: var(--color-bg-light);
}
.faq .section-label,
.faq .section-title {
  text-align: center;
}

.faq-list {
  max-width: 720px;
  margin: 56px auto 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.faq-item {
  background: var(--color-white);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 22px 28px;
  font-size: 0.95rem;
  font-weight: 700;
  text-align: left;
  color: var(--color-text);
  gap: 16px;
  transition: background var(--transition);
}
.faq-q:hover { background: var(--color-bg-light); }
.faq-q::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: transform var(--transition);
}
.faq-q[aria-expanded="true"]::after { transform: rotate(45deg); }

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}
.faq-a.open {
  max-height: 300px;
  padding: 0 28px 22px;
}
.faq-a p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.85;
}

/* ===========================
   CTA Section
   =========================== */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  padding: 96px 0;
}

.cta-inner {
  text-align: center;
}

.cta-inner h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 20px;
}

.cta-inner p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 40px;
  font-size: 1.05rem;
}

.cta-section .cta-line {
  background: #06C755;
  font-size: 1.1rem;
  padding: 18px 48px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}
.cta-section .cta-line:hover { background: #05a847; }

/* ===========================
   Footer
   =========================== */
.site-footer {
  background: var(--color-bg-dark);
  padding: 56px 0 32px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 24px;
}

.footer-logo {
  font-family: var(--font-en);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-white);
}
.footer-logo span { color: var(--color-accent); }

.footer-nav ul {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-nav a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}
.footer-nav a:hover { color: var(--color-white); }

.footer-sns {
  display: flex;
  gap: 12px;
}

.sns-icon-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  transition: background var(--transition), border-color var(--transition);
}
.sns-icon-link:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.4);
}
.sns-icon-link img {
  width: 18px;
  height: 18px;
  filter: invert(1);
  opacity: 0.65;
  transition: opacity var(--transition);
}
.sns-icon-link:hover img { opacity: 1; }

.footer-copy {
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.3);
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 960px) {
  .concept-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .features-grid,
  .activity-grid,
  .voice-grid,
  .price-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
  }
  .price-card--featured {
    transform: none;
    order: -1;
  }
  .price-card--featured:hover { transform: translateY(-4px); }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }

  .global-nav {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(8px);
    padding: 24px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  }
  .global-nav.open { display: block; }
  .global-nav ul {
    flex-direction: column;
    gap: 0;
  }
  .global-nav a {
    display: block;
    padding: 14px 0;
    color: var(--color-text);
    font-size: 1rem;
    border-bottom: 1px solid var(--color-border);
  }

  .hamburger { display: flex; }
  .header-cta { display: none; }

  .hero-title { font-size: clamp(1.6rem, 6vw, 2.6rem); }

  .features-grid,
  .activity-grid,
  .voice-grid {
    max-width: 100%;
  }

  .footer-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .footer-nav ul { justify-content: center; }
}