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

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

body {
  font-family: 'Hiragino Mincho ProN', 'Yu Mincho', 'YuMincho', Georgia, serif;
  color: #3a2e2a;
  background: #fff;
  line-height: 1.8;
}

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

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

/* =============================
   Image Placeholder
   ============================= */
.img-placeholder {
  background: #d8d8d8;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #888;
  font-size: 0.85rem;
  font-family: 'Hiragino Sans', sans-serif;
  letter-spacing: 0.05em;
  border: 2px dashed #bbb;
  border-radius: 4px;
  text-align: center;
  padding: 12px;
}

/* =============================
   Header / Nav
   ============================= */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid #e8e0d6;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.3rem;
  font-weight: 600;
  color: #7a9e8a;
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo .logo-sub {
  font-size: 0.65rem;
  color: #aaa;
  letter-spacing: 0.15em;
  display: block;
  font-weight: 400;
}

nav {
  display: flex;
  gap: 32px;
  font-size: 0.82rem;
  color: #5a4f4a;
  font-family: 'Hiragino Sans', sans-serif;
  letter-spacing: 0.08em;
}

nav a:hover {
  color: #7a9e8a;
}

/* =============================
   Buttons
   ============================= */
.btn-primary {
  display: inline-block;
  background: #c9a86a;
  color: #fff;
  padding: 14px 36px;
  border-radius: 40px;
  font-size: 0.92rem;
  letter-spacing: 0.12em;
  font-family: 'Hiragino Sans', sans-serif;
  transition: background 0.3s, transform 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary:hover {
  background: #b8943d;
  transform: translateY(-1px);
}

.btn-outline {
  display: inline-block;
  background: transparent;
  color: #7a9e8a;
  padding: 12px 32px;
  border-radius: 40px;
  border: 2px solid #7a9e8a;
  font-size: 0.88rem;
  letter-spacing: 0.1em;
  font-family: 'Hiragino Sans', sans-serif;
  transition: all 0.3s;
  cursor: pointer;
}

.btn-outline:hover {
  background: #7a9e8a;
  color: #fff;
}

/* =============================
   Section Common
   ============================= */
section {
  padding: 90px 40px;
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  margin-bottom: 56px;
}

.section-title .en {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  color: #7a9e8a;
  margin-bottom: 10px;
  font-family: 'Hiragino Sans', sans-serif;
}

.section-title h2 {
  font-size: 1.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: #3a2e2a;
  line-height: 1.5;
}

.section-title p {
  margin-top: 14px;
  font-size: 0.88rem;
  color: #7a6e68;
  font-family: 'Hiragino Sans', sans-serif;
}

.divider {
  text-align: center;
  margin: 0 auto 50px;
  color: #c9a86a;
  font-size: 1.2rem;
  letter-spacing: 0.3em;
}

/* =============================
   Hero
   ============================= */
#hero {
  padding: 0;
  position: relative;
  height: 100vh;
  min-height: 620px;
  overflow: hidden;
}

.hero-bg {
  width: 100%;
  height: 100%;
}

.hero-bg .img-placeholder {
  width: 100%;
  height: 100%;
  border-radius: 0;
  border: none;
  font-size: 1rem;
  color: #999;
  background: linear-gradient(135deg, #e8e0d0 0%, #d4cec5 100%);
}

.hero-content {
  position: absolute;
  top: 50%;
  left: 10%;
  transform: translateY(-50%);
}

.hero-content .logo-area {
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  color: #7a9e8a;
  margin-bottom: 28px;
  font-family: 'Hiragino Sans', sans-serif;
}

.hero-content h1 {
  font-size: 3.2rem;
  font-weight: 600;
  line-height: 1.5;
  color: #3a2e2a;
  margin-bottom: 24px;
}

.hero-content p {
  font-size: 0.95rem;
  color: #5a4f4a;
  line-height: 1.9;
  margin-bottom: 36px;
  font-family: 'Hiragino Sans', sans-serif;
}

.hero-cta {
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.hero-cta .note {
  font-size: 0.78rem;
  color: #8a7e78;
  font-family: 'Hiragino Sans', sans-serif;
}

/* =============================
   Needs （寄り添います）
   ============================= */
#needs {
  background: #fdf8f3;
}

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

.need-card {
  background: #fff;
  border-radius: 12px;
  padding: 32px 24px;
  text-align: center;
  box-shadow: 0 2px 16px rgba(0,0,0,0.05);
}

.need-card .icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 16px;
  background: #f0ede6;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.need-card p {
  font-size: 0.88rem;
  color: #5a4f4a;
  line-height: 1.7;
  font-family: 'Hiragino Sans', sans-serif;
}

.pet-note {
  margin-top: 48px;
  background: #fff;
  border-radius: 16px;
  padding: 36px 40px;
  display: flex;
  align-items: center;
  gap: 40px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.05);
}

.pet-note .img-placeholder {
  width: 220px;
  height: 140px;
  flex-shrink: 0;
  border-radius: 10px;
}

.pet-note-text h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  letter-spacing: 0.08em;
}

.pet-note-text p {
  font-size: 0.88rem;
  color: #7a6e68;
  font-family: 'Hiragino Sans', sans-serif;
  line-height: 1.8;
}

/* =============================
   Features （できること）
   ============================= */
#features {
  background: #fff;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.feature-card {
  background: #fdf8f3;
  border-radius: 16px;
  overflow: hidden;
}

.feature-card .img-placeholder {
  width: 100%;
  height: 220px;
  border-radius: 0;
  border: none;
  border-bottom: 2px dashed #bbb;
}

.feature-card-body {
  padding: 28px 28px 32px;
}

.feature-card-body .num {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: #7a9e8a;
  font-family: 'Hiragino Sans', sans-serif;
  margin-bottom: 8px;
}

.feature-card-body h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  letter-spacing: 0.08em;
}

.feature-card-body p {
  font-size: 0.87rem;
  color: #7a6e68;
  font-family: 'Hiragino Sans', sans-serif;
  line-height: 1.8;
}

/* =============================
   How to use
   ============================= */
#howto {
  background: #fdf8f3;
}

.steps {
  display: flex;
  gap: 0;
  align-items: flex-start;
  justify-content: center;
}

.step {
  flex: 1;
  text-align: center;
  padding: 0 24px;
  position: relative;
}

.step:not(:last-child)::after {
  content: '>';
  position: absolute;
  right: -4px;
  top: 36px;
  font-size: 1.2rem;
  color: #c9a86a;
  font-weight: bold;
}

.step-num {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #7a9e8a;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 600;
  margin: 0 auto 20px;
  font-family: 'Hiragino Sans', sans-serif;
}

.step .img-placeholder {
  width: 100%;
  height: 180px;
  margin: 16px auto 20px;
  border-radius: 10px;
}

.step h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
  letter-spacing: 0.06em;
}

.step p {
  font-size: 0.85rem;
  color: #7a6e68;
  font-family: 'Hiragino Sans', sans-serif;
  line-height: 1.7;
}

/* =============================
   Steps Slider
   ============================= */
.steps-slider-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.steps-viewport {
  overflow: hidden;
  flex: 1;
}

.steps-track {
  display: flex;
  transition: transform 0.65s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.steps-track .step {
  flex: 0 0 calc(100% / 3);
  padding: 0 20px;
  position: relative;
}

/* 矢印ボタン */
.slider-btn {
  background: transparent;
  border: 1.5px solid #d4c9b8;
  color: #b0a89e;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 1.4rem;
  cursor: pointer;
  flex-shrink: 0;
  transition: border-color 0.3s, color 0.3s, box-shadow 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slider-btn:hover:not(:disabled) {
  border-color: #c9a86a;
  color: #c9a86a;
  box-shadow: 0 2px 12px rgba(201,168,106,0.15);
}

.slider-btn:disabled {
  opacity: 0.2;
  cursor: default;
}

/* ドット */
.steps-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 32px;
}

.steps-dots .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  background: #d4c9b8;
  cursor: pointer;
  padding: 0;
  transition: background 0.4s ease, transform 0.4s ease, width 0.4s ease;
}

.steps-dots .dot.active {
  background: #c9a86a;
  width: 24px;
  border-radius: 4px;
  transform: none;
}

/* ステップ内の区切り矢印は非表示（スライダーに変えたため） */
.steps-track .step::after {
  display: none;
}

.howto-note {
  text-align: center;
  margin-top: 36px;
  font-size: 0.88rem;
  color: #7a6e68;
  font-family: 'Hiragino Sans', sans-serif;
}

/* =============================
   Pricing
   ============================= */
#pricing {
  background: #fff;
}

.plans {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.plan-card {
  border: 2px solid #e8e0d6;
  border-radius: 16px;
  padding: 36px 28px;
  text-align: center;
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s;
}

.plan-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
}

.plan-card.recommended {
  border-color: #7a9e8a;
  box-shadow: 0 4px 24px rgba(122,158,138,0.15);
}

.plan-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: #7a9e8a;
  color: #fff;
  font-size: 0.72rem;
  padding: 4px 18px;
  border-radius: 20px;
  letter-spacing: 0.1em;
  font-family: 'Hiragino Sans', sans-serif;
}

.plan-card h3 {
  font-size: 1rem;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
  font-family: 'Hiragino Sans', sans-serif;
}

.plan-card .price {
  font-size: 2.4rem;
  font-weight: 700;
  color: #3a2e2a;
  margin: 16px 0 4px;
  font-family: 'Hiragino Sans', sans-serif;
}

.plan-card .price span {
  font-size: 0.9rem;
  font-weight: 400;
  color: #7a6e68;
}

.plan-card .desc {
  font-size: 0.82rem;
  color: #7a6e68;
  margin-bottom: 24px;
  font-family: 'Hiragino Sans', sans-serif;
  min-height: 40px;
  line-height: 1.6;
}

.plan-note {
  text-align: center;
  font-size: 0.87rem;
  color: #7a6e68;
  line-height: 1.8;
  margin-bottom: 48px;
  font-family: 'Hiragino Sans', sans-serif;
}

.features-list {
  background: #fdf8f3;
  border-radius: 16px;
  padding: 40px;
}

.features-list h3 {
  text-align: center;
  font-size: 1rem;
  letter-spacing: 0.1em;
  margin-bottom: 28px;
  font-family: 'Hiragino Sans', sans-serif;
}

.features-list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.features-list-grid .feat-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.87rem;
  font-family: 'Hiragino Sans', sans-serif;
  color: #5a4f4a;
}

.features-list-grid .feat-item::before {
  content: '✓';
  color: #7a9e8a;
  font-weight: bold;
  flex-shrink: 0;
}

.pricing-cta {
  text-align: center;
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.pricing-cta .note {
  font-size: 0.82rem;
  color: #8a7e78;
  font-family: 'Hiragino Sans', sans-serif;
}

/* =============================
   Our Story（私たちの想い）
   ============================= */
#story {
  background: #3a2e2a;
  color: #f5f0e8;
  text-align: center;
  padding: 110px 40px;
  position: relative;
  overflow: hidden;
}

.story-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.story-bg .img-placeholder {
  width: 100%;
  height: 100%;
  border-radius: 0;
  border: none;
  opacity: 0.3;
  background: #2a201c;
  color: #666;
}

.story-inner {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}

.story-inner .en {
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  color: #c9a86a;
  margin-bottom: 16px;
  font-family: 'Hiragino Sans', sans-serif;
  display: block;
}

.story-inner h2 {
  font-size: 1.6rem;
  margin-bottom: 40px;
  letter-spacing: 0.1em;
  line-height: 1.6;
}

.story-text {
  font-size: 0.95rem;
  line-height: 2.2;
  color: #ddd7cc;
  font-family: 'Hiragino Sans', sans-serif;
  text-align: left;
  margin-bottom: 48px;
}

.story-tag {
  font-size: 1.4rem;
  letter-spacing: 0.15em;
  color: #c9a86a;
}

/* =============================
   FAQ
   ============================= */
#faq {
  background: #fdf8f3;
}

/* FAQ アコーディオン */
.faq-list {
  max-width: 800px;
  margin: 0 auto 36px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.05);
  overflow: hidden;
}

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 28px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 0.93rem;
  font-weight: 600;
  font-family: 'Hiragino Sans', sans-serif;
  color: #3a2e2a;
  letter-spacing: 0.04em;
  line-height: 1.6;
}

.faq-q::before {
  content: 'Q.';
  color: #7a9e8a;
  font-size: 1rem;
  flex-shrink: 0;
}

.faq-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid #c9a86a;
  position: relative;
  transition: background 0.25s;
}

.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: #c9a86a;
  border-radius: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: transform 0.25s, opacity 0.25s;
}

.faq-icon::before { width: 10px; height: 2px; }
.faq-icon::after  { width: 2px;  height: 10px; }

.faq-item.open .faq-icon { background: #c9a86a; }
.faq-item.open .faq-icon::before { background: #fff; }
.faq-item.open .faq-icon::after  { background: #fff; transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }

.faq-a {
  max-height: 0;
  overflow: hidden;
  font-size: 0.88rem;
  color: #7a6e68;
  font-family: 'Hiragino Sans', sans-serif;
  line-height: 1.85;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 28px 0 56px;
}

.faq-item.open .faq-a {
  max-height: 300px;
  padding: 0 28px 22px 56px;
}

.faq-more {
  text-align: center;
  margin-top: 12px;
}

.faq-more a {
  font-size: 0.87rem;
  color: #7a9e8a;
  font-family: 'Hiragino Sans', sans-serif;
  letter-spacing: 0.05em;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* =============================
   Security / Trust
   ============================= */
#trust {
  background: #fff;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 56px;
}

.trust-card {
  text-align: center;
  padding: 32px 20px;
}

.trust-card .icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #f0ede6;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.trust-card h3 {
  font-size: 1rem;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.trust-card p {
  font-size: 0.85rem;
  color: #7a6e68;
  font-family: 'Hiragino Sans', sans-serif;
  line-height: 1.8;
}

.final-cta {
  text-align: center;
  background: #fdf8f3;
  border-radius: 20px;
  padding: 60px 40px;
}

.final-cta h2 {
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.final-cta p {
  font-size: 0.9rem;
  color: #7a6e68;
  margin-bottom: 32px;
  font-family: 'Hiragino Sans', sans-serif;
}

/* =============================
   Footer
   ============================= */
footer {
  background: #3a2e2a;
  color: #b0a89e;
  padding: 40px;
  text-align: center;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.footer-logo {
  font-size: 1.1rem;
  color: #f5f0e8;
  letter-spacing: 0.15em;
  margin-bottom: 24px;
}

.footer-links {
  display: flex;
  gap: 32px;
  justify-content: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 0.78rem;
  color: #b0a89e;
  font-family: 'Hiragino Sans', sans-serif;
  letter-spacing: 0.08em;
  transition: color 0.3s;
}

.footer-links a:hover {
  color: #f5f0e8;
}

.footer-copy {
  font-size: 0.72rem;
  color: #7a6e68;
  font-family: 'Hiragino Sans', sans-serif;
}

/* =============================
   Responsive — Mobile (〜768px)
   ============================= */
@media (max-width: 768px) {

  /* Header */
  .header-inner {
    padding: 12px 20px;
    flex-direction: column;
    gap: 10px;
  }

  nav {
    gap: 16px;
    font-size: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
  }

  /* Section */
  section {
    padding: 64px 20px;
  }

  .section-title h2 {
    font-size: 1.3rem;
  }

  /* Hero */
  #hero {
    height: 100svh;
    min-height: 580px;
  }

  .hero-content {
    left: 0;
    right: 0;
    padding: 0 24px;
    transform: translateY(-50%);
  }

  .hero-content h1 {
    font-size: 2rem;
  }

  .hero-content p {
    font-size: 0.85rem;
  }

  .hero-cta {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .btn-primary,
  .btn-outline {
    width: 100%;
    text-align: center;
    padding: 14px 20px;
    font-size: 0.88rem;
  }

  /* Needs */
  .needs-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .pet-note {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 28px 20px;
    gap: 20px;
  }

  .pet-note .img-placeholder {
    width: 100%;
    height: 160px;
  }

  /* Features */
  .features-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .feature-card .img-placeholder {
    height: 200px;
  }

  /* Steps — スライダー無効化、縦積みに */
  .steps-slider-wrap {
    flex-direction: column;
    gap: 0;
  }

  .slider-btn {
    display: none;
  }

  .steps-viewport {
    overflow: visible;
  }

  .steps-track {
    flex-direction: column;
    transform: none !important;
    transition: none;
    gap: 36px;
  }

  .steps-track .step {
    flex: none;
    width: 100%;
    padding: 0;
  }

  .steps-dots {
    display: none;
  }

  /* Pricing */
  .plans {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .features-list {
    padding: 28px 20px;
  }

  .features-list-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  /* Story */
  #story {
    padding: 80px 24px;
  }

  .story-inner h2 {
    font-size: 1.3rem;
  }

  .story-text {
    font-size: 0.88rem;
    line-height: 2;
  }

  /* Trust */
  .trust-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .final-cta {
    padding: 40px 20px;
  }

  .final-cta h2 {
    font-size: 1.2rem;
  }

  /* FAQ */
  .faq-q {
    padding: 18px 20px;
    font-size: 0.87rem;
  }

  .faq-a {
    padding: 0 20px 0 44px;
  }

  .faq-item.open .faq-a {
    padding: 0 20px 18px 44px;
  }

  /* Footer */
  footer {
    padding: 32px 20px;
  }

  .footer-links {
    gap: 16px;
    flex-direction: column;
    align-items: center;
  }
}