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

:root {
  --color-dark: #0d0d0d;
  --color-gold: #c9a84c;
  --color-gold-light: #e4cc7a;
  --color-white: #ffffff;
  --color-gray: #f5f5f5;
  --color-gray-mid: #888;
  --color-card-dark: #1a1a1a;
  --color-card-border: #2a2a2a;
  --font-main: "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  --max-width: 1000px;
  --section-pad: 80px 24px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--color-white);
  background: var(--color-dark);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 24px;
  background: linear-gradient(170deg, #0d0d0d 0%, #1a1510 50%, #0d0d0d 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 50% 50%, rgba(201,168,76,0.06) 0%, transparent 60%);
  animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
  0% { transform: scale(1); opacity: 0.5; }
  100% { transform: scale(1.15); opacity: 1; }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-badge {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--color-gold);
  border: 1px solid var(--color-gold);
  padding: 6px 18px;
  border-radius: 30px;
  margin-bottom: 28px;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 24px;
}

.gold {
  color: var(--color-gold);
}

.hero-sub {
  font-size: 1rem;
  color: #ccc;
  line-height: 2;
  margin-bottom: 36px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.btn-primary {
  display: inline-block;
  background: var(--color-gold);
  color: var(--color-dark);
  font-weight: 700;
  padding: 14px 36px;
  border-radius: 6px;
  font-size: 1rem;
  transition: background 0.3s, transform 0.2s;
}

.btn-primary:hover {
  background: var(--color-gold-light);
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-block;
  border: 1px solid var(--color-gold);
  color: var(--color-gold);
  font-weight: 600;
  padding: 14px 36px;
  border-radius: 6px;
  font-size: 1rem;
  transition: background 0.3s, color 0.3s, transform 0.2s;
}

.btn-secondary:hover {
  background: var(--color-gold);
  color: var(--color-dark);
  transform: translateY(-2px);
}

.hero-note {
  font-size: 0.75rem;
  color: var(--color-gray-mid);
}

/* ===== Sections ===== */
.section-dark {
  background: var(--color-dark);
  padding: var(--section-pad);
}

.section-white {
  background: var(--color-white);
  color: var(--color-dark);
  padding: var(--section-pad);
}

.section-gray {
  background: var(--color-gray);
  color: var(--color-dark);
  padding: var(--section-pad);
}

.section-title {
  text-align: center;
  margin-bottom: 48px;
}

.section-title .label {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--color-gold);
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section-title h2 {
  font-size: clamp(1.4rem, 4vw, 2.2rem);
  font-weight: 800;
  line-height: 1.5;
}

.section-title p {
  margin-top: 16px;
  color: var(--color-gray-mid);
  font-size: 0.95rem;
}

.section-copy {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 40px;
  font-size: 1rem;
  line-height: 2;
  color: #ccc;
}

.section-white .section-copy {
  color: #444;
}

/* ===== Feature Grid ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 48px;
}

.feature-card {
  background: var(--color-card-dark);
  border: 1px solid var(--color-card-border);
  border-radius: 12px;
  padding: 32px 28px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(201,168,76,0.1);
}

.feature-card h3 {
  font-size: 1.15rem;
  color: var(--color-gold);
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 0.9rem;
  color: #aaa;
  line-height: 1.8;
}

/* ===== Compare Table ===== */
.compare-table {
  overflow-x: auto;
}

.compare-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.compare-table th,
.compare-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-card-border);
  text-align: left;
}

.compare-table thead th {
  color: var(--color-gold);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.compare-table td {
  color: #bbb;
}

.compare-table td strong {
  color: var(--color-gold);
}

/* ===== Loyalty Grid ===== */
.loyalty-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.loyalty-card {
  background: var(--color-gray);
  border-radius: 12px;
  padding: 32px 28px;
  text-align: center;
  transition: transform 0.3s;
}

.loyalty-card:hover {
  transform: translateY(-4px);
}

.loyalty-label {
  font-size: 0.75rem;
  color: var(--color-gray-mid);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.loyalty-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-gold);
  margin-bottom: 12px;
}

.loyalty-card p {
  font-size: 0.85rem;
  color: #666;
  line-height: 1.7;
}

/* ===== Mockup Card ===== */
.mockup-card {
  max-width: 400px;
  margin: 0 auto 32px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

.mockup-header {
  background: var(--color-dark);
  color: var(--color-gold);
  text-align: center;
  padding: 14px;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  font-weight: 700;
}

.mockup-body {
  background: #fff;
  padding: 24px 28px;
}

.mockup-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid #eee;
  font-size: 0.9rem;
  color: #333;
}

.mockup-row.highlight {
  border-bottom: none;
  padding-top: 16px;
}

.mockup-row.highlight strong {
  font-size: 1.6rem;
  color: var(--color-gold);
}

.mockup-note {
  text-align: center;
  font-size: 0.7rem;
  color: #aaa;
  margin-top: 12px;
}

.ambassador-note {
  text-align: center;
  font-size: 0.8rem;
  color: #666;
  max-width: 700px;
  margin: 0 auto;
}

/* ===== Staff Grid ===== */
.staff-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.staff-card {
  background: var(--color-card-dark);
  border: 1px solid var(--color-card-border);
  border-radius: 12px;
  padding: 28px 24px;
  transition: transform 0.3s;
}

.staff-card:hover {
  transform: translateY(-4px);
}

.staff-label {
  font-size: 0.75rem;
  color: var(--color-gold);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  font-weight: 700;
}

.staff-card blockquote {
  font-size: 0.9rem;
  color: #ccc;
  line-height: 1.9;
  margin-bottom: 16px;
  font-style: normal;
}

.staff-meta {
  font-size: 0.75rem;
  color: var(--color-gray-mid);
}

/* ===== CTA ===== */
.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.cta-note {
  text-align: center;
  font-size: 0.75rem;
  color: var(--color-gray-mid);
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 700px;
  margin: 0 auto;
}

.faq-list details {
  border-bottom: 1px solid #ddd;
  padding: 0;
}

.faq-list summary {
  padding: 20px 0;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-dark);
}

.faq-list summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--color-gold);
  font-weight: 300;
  transition: transform 0.3s;
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-answer {
  padding: 0 0 20px;
  font-size: 0.9rem;
  color: #555;
  line-height: 1.9;
}

/* ===== Footer ===== */
footer {
  background: #080808;
  padding: 40px 24px;
}

.footer-content {
  max-width: var(--max-width);
}

.footer-content p {
  font-size: 0.7rem;
  color: #666;
  line-height: 1.8;
}

/* ===== Fade-in Animation ===== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== Responsive ===== */
@media (max-width: 600px) {
  :root {
    --section-pad: 56px 16px;
  }

  .hero {
    padding: 48px 16px;
  }

  .hero h1 {
    font-size: 1.6rem;
  }

  .hero-sub {
    font-size: 0.9rem;
  }

  .btn-primary,
  .btn-secondary {
    padding: 12px 28px;
    font-size: 0.9rem;
    width: 100%;
    text-align: center;
  }

  .hero-buttons,
  .cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .loyalty-value {
    font-size: 1.6rem;
  }

  .mockup-row.highlight strong {
    font-size: 1.3rem;
  }
}