/* ────────────────────────────────────────
   デザイントークン
──────────────────────────────────────── */
:root {
  color-scheme: dark;

  /* Primitive */
  --gold-500:   #D4AF37;
  --brown-500:  #8B7355;
  --black-950:  #0F0F0F;
  --gray-900:   #1A1A1A;
  --white-100:  #F5F5F5;

  /* Semantic */
  --color-cta:          var(--gold-500);
  --color-bg:           var(--black-950);
  --color-surface:      var(--gray-900);
  --color-text-primary: var(--white-100);
  --color-border:       var(--brown-500);

  /* タイポグラフィ */
  --font-heading: 'Cormorant Garamond', serif;
  --font-body:    'Noto Sans JP', sans-serif;

  /* スペーシング */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  4rem;
  --space-xl:  8rem;

  /* コンテンツ幅 */
  --max-width: 1200px;
  --content-width: 680px;
}

/* ────────────────────────────────────────
   リセット・ベース
──────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

/* ────────────────────────────────────────
   タイポグラフィ
──────────────────────────────────────── */
h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.02em;
  word-break: keep-all;
  overflow-wrap: break-word;
}

h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.02em;
}

p {
  font-family: var(--font-body);
  font-size: clamp(0.9rem, 2vw, 1rem);
  line-height: 1.9;
  color: var(--color-text-primary);
}

small {
  font-size: 0.875rem;
}

/* ────────────────────────────────────────
   ボタン
──────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 12px 32px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: opacity 0.2s ease;
}

.btn:hover {
  opacity: 0.85;
}

.btn:focus-visible {
  outline: 2px solid var(--color-cta);
  outline-offset: 3px;
}

.btn-primary {
  background-color: var(--color-cta);
  color: var(--color-bg);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--color-cta);
  color: var(--color-cta);
}

/* ────────────────────────────────────────
   Section 1 — Hero
──────────────────────────────────────── */
.hero {
  height: 100svh;
  min-height: 600px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 var(--space-md);
  position: relative;
  overflow: hidden;
  background-image: url('images/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(15, 15, 15, 0.65);
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(212, 175, 55, 0.06) 0%, transparent 60%);
  pointer-events: none;
  z-index: 1;
}

.hero__inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

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

.hero__tagline {
  font-family: var(--font-body);
  font-size: clamp(0.75rem, 1.2vw, 0.85rem);
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--color-text-primary);
  opacity: 0.7;
  margin-bottom: var(--space-sm);
  line-height: 1.9;
}

.hero__headline {
  font-family: var(--font-heading);
  font-size: clamp(1rem, 2.2vw, 1.6rem);
  font-weight: 400;
  opacity: 0.8;
  margin-bottom: var(--space-sm);
}

.hero__brand {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 7vw, 5.5rem);
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--color-cta);
  text-transform: uppercase;
  display: block;
  line-height: 1.1;
  margin-bottom: var(--space-md);
}

.hero__subheadline {
  font-family: var(--font-heading);
  font-size: clamp(0.95rem, 2vw, 1.25rem);
  font-style: italic;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text-primary);
  opacity: 0.75;
  margin-bottom: var(--space-lg);
}

/* ────────────────────────────────────────
   Section 2 — Benefits
──────────────────────────────────────── */
.benefits {
  background-color: var(--color-surface);
  padding: var(--space-xl) var(--space-md);
  border-top: 1px solid rgba(139, 115, 85, 0.3);
}

.benefits__inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
}

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

.benefits__headline {
  margin-bottom: var(--space-lg);
}

.benefits__body {
  margin-bottom: var(--space-lg);
}

.benefits__body p {
  margin-bottom: var(--space-sm);
}

.benefits__divider {
  width: 40px;
  height: 1px;
  background-color: var(--color-border);
  margin: var(--space-lg) 0;
}

.benefits__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.benefits__list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-size: clamp(0.9rem, 2vw, 1rem);
  line-height: 1.7;
  color: var(--color-text-primary);
}

.benefits__list li::before {
  content: '✓';
  color: var(--color-cta);
  font-size: 0.85rem;
  flex-shrink: 0;
  margin-top: 0.3em;
}

/* ────────────────────────────────────────
   Section 3 — Process
──────────────────────────────────────── */
.process {
  background-color: var(--color-bg);
  padding: var(--space-xl) var(--space-md);
  border-top: 1px solid rgba(139, 115, 85, 0.3);
}

.process__inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
}

.process__steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.process__step {
  display: flex;
  flex-direction: column;
}

.process__heading {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-text-primary);
  opacity: 0.6;
  text-transform: uppercase;
  margin-bottom: var(--space-xl);
}

.process__number {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 600;
  color: var(--color-cta);
  opacity: 0.55;
  letter-spacing: 0.05em;
  line-height: 1;
  margin-bottom: var(--space-md);
}

.process__line {
  width: 40px;
  height: 1px;
  background-color: var(--color-border);
  margin-bottom: var(--space-md);
}

.process__title {
  font-family: var(--font-heading);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
}

.process__desc {
  font-size: clamp(0.85rem, 1.8vw, 0.95rem);
  line-height: 1.9;
  color: var(--color-text-primary);
  opacity: 0.85;
}

/* ────────────────────────────────────────
   Section 4 — Pricing
──────────────────────────────────────── */
.pricing {
  background-color: var(--color-surface);
  padding: var(--space-xl) var(--space-md);
  border-top: 1px solid rgba(139, 115, 85, 0.3);
}

.pricing__inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.pricing__heading {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-text-primary);
  opacity: 0.6;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.pricing__subtext {
  font-family: var(--font-heading);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-style: italic;
  color: var(--color-text-primary);
  opacity: 0.7;
  margin-bottom: var(--space-xl);
}

.pricing__plans {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  align-items: start;
}

.pricing__plan {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-lg) var(--space-md);
  border: 1px solid rgba(139, 115, 85, 0.3);
  text-align: left;
}

.pricing__plan--featured {
  border-color: var(--color-cta);
  box-shadow: 0 0 32px rgba(212, 175, 55, 0.12);
  position: relative;
}

.pricing__plan-badge {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--color-bg);
  background-color: var(--color-cta);
  padding: 4px 12px;
  margin-bottom: var(--space-xs);
  align-self: flex-start;
}

.pricing__plan-name {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 600;
  color: var(--color-text-primary);
  letter-spacing: 0.05em;
}

.pricing__plan-tagline {
  font-size: clamp(0.8rem, 1.5vw, 0.9rem);
  color: var(--color-text-primary);
  opacity: 0.65;
  line-height: 1.7;
}

.pricing__plan-price {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  color: var(--color-cta);
  letter-spacing: 0.02em;
  margin-top: var(--space-xs);
}

.pricing__plan-unit {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-primary);
  opacity: 0.5;
  margin-left: 4px;
}

.pricing__plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding-top: var(--space-sm);
  border-top: 1px solid rgba(139, 115, 85, 0.2);
  flex: 1;
}

.pricing__plan-features li {
  font-size: clamp(0.8rem, 1.5vw, 0.9rem);
  color: var(--color-text-primary);
  opacity: 0.75;
  line-height: 1.7;
  padding-left: 1em;
  position: relative;
}

.pricing__plan-features li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-cta);
  opacity: 0.6;
}

/* ────────────────────────────────────────
   Section 5 — Testimonials
──────────────────────────────────────── */
.testimonials {
  background-color: var(--color-bg);
  padding: var(--space-xl) var(--space-md);
  border-top: 1px solid rgba(139, 115, 85, 0.3);
}

.testimonials__inner {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
}

.testimonials__heading {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-text-primary);
  opacity: 0.6;
  text-transform: uppercase;
  margin-bottom: var(--space-xl);
}

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.testimonials__card {
  display: flex;
  flex-direction: column;
  padding: var(--space-md) var(--space-md);
  border: 1px solid rgba(139, 115, 85, 0.3);
}

.testimonials__quote {
  font-family: var(--font-heading);
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  font-style: italic;
  line-height: 1.8;
  color: var(--color-text-primary);
  opacity: 0.85;
  flex: 1;
  margin-bottom: var(--space-md);
}

.testimonials__name {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-cta);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
}

.testimonials__role {
  font-size: 0.8rem;
  color: var(--color-text-primary);
  opacity: 0.6;
  letter-spacing: 0.05em;
}

/* ────────────────────────────────────────
   Section 6 — FAQ
──────────────────────────────────────── */
.faq {
  background-color: var(--color-surface);
  padding: var(--space-xl) var(--space-md);
  border-top: 1px solid rgba(139, 115, 85, 0.3);
}

.faq__inner {
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
}

.faq__heading {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-text-primary);
  opacity: 0.6;
  text-transform: uppercase;
  margin-bottom: var(--space-xl);
}

.faq__list {
  display: flex;
  flex-direction: column;
}

.faq__item {
  padding: var(--space-md) 0;
  border-bottom: 1px solid rgba(139, 115, 85, 0.2);
}

.faq__item:first-child {
  border-top: 1px solid rgba(139, 115, 85, 0.2);
}

.faq__question {
  font-family: var(--font-heading);
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 600;
  color: var(--color-cta);
  letter-spacing: 0.02em;
  margin-bottom: var(--space-sm);
}

.faq__answer {
  font-size: clamp(0.85rem, 1.8vw, 0.95rem);
  line-height: 1.9;
  color: var(--color-text-primary);
  opacity: 0.8;
}

/* ────────────────────────────────────────
   Section 7 — CTA
──────────────────────────────────────── */
.cta {
  background-color: var(--color-bg);
  padding: var(--space-xl) var(--space-md);
  border-top: 1px solid rgba(139, 115, 85, 0.3);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(212, 175, 55, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

.cta__inner {
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 1;
}

.cta__tagline {
  font-family: var(--font-body);
  font-size: clamp(0.75rem, 1.2vw, 0.85rem);
  letter-spacing: 0.1em;
  color: var(--color-text-primary);
  opacity: 0.6;
  margin-bottom: var(--space-sm);
}

.cta__headline {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.04em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.cta__subtext {
  font-size: clamp(0.9rem, 2vw, 1rem);
  color: var(--color-text-primary);
  opacity: 0.7;
  margin-bottom: var(--space-md);
}

.cta__note {
  font-size: 0.8rem;
  color: var(--color-text-primary);
  opacity: 0.5;
  letter-spacing: 0.05em;
  margin-top: var(--space-sm);
}

/* ────────────────────────────────────────
   レスポンシブ（スマホ：375px〜）
──────────────────────────────────────── */
@media (max-width: 768px) {
  :root {
    --space-lg: 3rem;
    --space-xl: 5rem;
  }

  .hero {
    padding: var(--space-lg) var(--space-sm);
  }

  .hero__content {
    max-width: 100%;
  }

  .hero__brand {
    line-height: 1.2;
  }

  .benefits {
    padding: var(--space-xl) var(--space-sm);
  }

  .benefits__content {
    max-width: 100%;
  }

  .process {
    padding: var(--space-xl) var(--space-sm);
  }

  .process__steps {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .pricing {
    padding: var(--space-xl) var(--space-sm);
  }

  .pricing__plans {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .pricing__plan--featured {
    order: -1;
  }

  .testimonials {
    padding: var(--space-xl) var(--space-sm);
  }

  .testimonials__grid {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .faq {
    padding: var(--space-xl) var(--space-sm);
  }

  .cta {
    padding: var(--space-xl) var(--space-sm);
  }

  .cta .btn {
    width: 100%;
    justify-content: center;
  }
}