/* ===========================
   CSS Variables
=========================== */
:root {
  --color-primary: #E07060;
  --color-primary-light: #F2A898;
  --color-primary-dark: #C05040;
  --color-accent: #F7EAE5;
  --color-bg: #FFFDF9;
  --color-bg-section: #FDF6F0;
  --color-text: #3D2B1F;
  --color-text-muted: #7A5F55;
  --color-border: #F0DDD5;
  --color-white: #FFFFFF;

  --font-sans: 'Noto Sans JP', sans-serif;
  --font-serif: 'Noto Serif JP', serif;

  --container-max: 1200px;
  --container-pad: clamp(16px, 4vw, 48px);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(200, 100, 80, 0.08);
  --shadow-md: 0 4px 20px rgba(200, 100, 80, 0.12);

  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: clamp(13px, 1.4vw, 16px);
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: opacity var(--transition);
}

a:hover {
  opacity: 0.8;
}

ul {
  list-style: none;
}

/* ===========================
   Layout
=========================== */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* ===========================
   Buttons
=========================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: clamp(10px, 1.2vw, 14px) clamp(20px, 3vw, 36px);
  font-family: var(--font-sans);
  font-size: clamp(13px, 1.3vw, 15px);
  font-weight: 700;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  opacity: 1;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-accent);
  opacity: 1;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
  font-weight: 500;
}

.btn-ghost:hover {
  background: var(--color-bg-section);
  opacity: 1;
}

/* ===========================
   Placeholder Images
=========================== */
.placeholder-img {
  background: linear-gradient(135deg, #F9EDE7 0%, #F0D9D0 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-light);
  font-size: clamp(11px, 1.2vw, 13px);
  font-weight: 500;
  text-align: center;
}

.placeholder-img--sm {
  width: 100%;
  aspect-ratio: 4 / 3;
}

.placeholder-img--md {
  width: 100%;
  aspect-ratio: 16 / 10;
}

.placeholder-img--round {
  width: clamp(120px, 18vw, 200px);
  height: clamp(120px, 18vw, 200px);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ===========================
   Section Common
=========================== */
.section-label {
  font-size: clamp(12px, 1.2vw, 14px);
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.8vw, 36px);
  line-height: 1.5;
  font-weight: 700;
  margin-bottom: 16px;
}

.section-title em {
  font-style: normal;
  color: var(--color-primary);
}

/* ===========================
   Announcement Bar
=========================== */
.announcement-bar {
  background: var(--color-primary);
  color: var(--color-white);
  padding: clamp(8px, 1vw, 12px) 0;
}

.announcement-inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  display: flex;
  align-items: center;
  gap: clamp(8px, 1.5vw, 16px);
  flex-wrap: wrap;
}

.announcement-badge {
  background: var(--color-white);
  color: var(--color-primary);
  font-size: clamp(10px, 1.1vw, 12px);
  font-weight: 700;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.announcement-text {
  font-size: clamp(12px, 1.3vw, 14px);
  font-weight: 500;
  flex: 1;
}

.announcement-text strong {
  font-weight: 700;
}

.announcement-cta {
  background: rgba(255,255,255,0.2);
  color: var(--color-white);
  font-size: clamp(11px, 1.1vw, 13px);
  font-weight: 700;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255,255,255,0.5);
  white-space: nowrap;
  transition: background var(--transition);
}

.announcement-cta:hover {
  background: rgba(255,255,255,0.35);
  opacity: 1;
}

/* ===========================
   Header
=========================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 24px);
  padding-block: clamp(10px, 1.2vw, 16px);
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  text-decoration: none;
}

.logo-icon {
  font-size: clamp(18px, 2.2vw, 26px);
  color: var(--color-primary);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-family: var(--font-serif);
  font-size: clamp(14px, 1.6vw, 20px);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.logo-sub {
  font-size: clamp(9px, 0.9vw, 11px);
  color: var(--color-text-muted);
  line-height: 1.3;
}

.nav {
  flex: 1;
}

.nav-list {
  display: flex;
  gap: clamp(12px, 1.6vw, 24px);
  justify-content: center;
}

.nav-list a {
  font-size: clamp(11px, 1.15vw, 14px);
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
}

.nav-list a:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  opacity: 1;
}

.nav-cta {
  flex-shrink: 0;
  font-size: clamp(11px, 1.1vw, 13px);
  padding: clamp(8px, 0.9vw, 11px) clamp(14px, 1.8vw, 22px);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--transition);
}

/* ===========================
   Mobile Menu
=========================== */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-white);
  z-index: 99;
  padding: 80px 24px 32px;
  flex-direction: column;
  gap: 24px;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}

.mobile-menu.is-open {
  transform: translateX(0);
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.mobile-nav-list li a {
  display: block;
  padding: 16px 0;
  font-size: 16px;
  font-weight: 500;
  border-bottom: 1px solid var(--color-border);
}

.mobile-cta {
  width: 100%;
  margin-top: 8px;
}

/* ===========================
   Hero Section
=========================== */
.hero {
  background: linear-gradient(160deg, #FEF5F0 0%, #FDF0E8 60%, #F8E8DC 100%);
  position: relative;
  overflow: hidden;
  padding-bottom: 0;
}

.hero-deco {
  position: absolute;
  width: clamp(80px, 12vw, 160px);
  height: clamp(80px, 12vw, 160px);
  border-radius: 50%;
  opacity: 0.15;
}

.hero-deco--tl {
  top: -30px;
  left: -30px;
  background: var(--color-primary);
}

.hero-deco--tr {
  top: 60px;
  right: -40px;
  width: clamp(60px, 9vw, 120px);
  height: clamp(60px, 9vw, 120px);
  background: var(--color-primary-light);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 64px);
  align-items: center;
  padding-block: clamp(40px, 6vw, 80px);
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: clamp(12px, 1.6vw, 20px);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: clamp(11px, 1.2vw, 13px);
  font-weight: 700;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  width: fit-content;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3.6vw, 48px);
  line-height: 1.4;
  font-weight: 700;
}

.hero-title em {
  font-style: normal;
  color: var(--color-primary);
  position: relative;
}

.hero-title em::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary-light);
  border-radius: 2px;
}

.hero-sub-cta {
  width: fit-content;
  font-size: clamp(11px, 1.2vw, 13px);
  padding: clamp(8px, 1vw, 11px) clamp(16px, 2vw, 24px);
}

.hero-desc {
  font-size: clamp(13px, 1.3vw, 15px);
  color: var(--color-text-muted);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.hero-image {
  position: relative;
}

.hero-img-placeholder {
  position: relative;
}

.hero-img-placeholder .placeholder-img {
  aspect-ratio: 4 / 3.5;
  border-radius: var(--radius-lg);
  font-size: clamp(13px, 1.5vw, 16px);
}

/* Hero Features Row */
.hero-features {
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: clamp(20px, 2.5vw, 32px) 0;
  margin-top: clamp(20px, 3vw, 40px);
}

.hero-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2.5vw, 40px);
}

.hero-feature-item {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.5vw, 16px);
}

.feature-icon {
  font-size: clamp(24px, 3vw, 36px);
  flex-shrink: 0;
}

.feature-title {
  font-size: clamp(12px, 1.3vw, 14px);
  font-weight: 700;
  line-height: 1.5;
}

/* ===========================
   Features Section
=========================== */
.features {
  padding: clamp(48px, 7vw, 96px) 0;
  background: var(--color-bg);
}

.section-header {
  text-align: center;
  margin-bottom: clamp(32px, 4vw, 56px);
}

.section-header .section-label {
  font-size: clamp(14px, 1.6vw, 18px);
  margin-bottom: 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2.5vw, 32px);
}

.feature-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 2.5vw, 32px);
  display: flex;
  flex-direction: column;
  gap: clamp(12px, 1.5vw, 16px);
  transition: box-shadow var(--transition), transform var(--transition);
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.feature-card-num {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 700;
  color: var(--color-primary-light);
  line-height: 1;
}

.feature-card-title {
  font-size: clamp(14px, 1.5vw, 18px);
  font-weight: 700;
  line-height: 1.5;
}

.feature-card-desc {
  font-size: clamp(12px, 1.2vw, 14px);
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* ===========================
   Content Section
=========================== */
.content-section {
  background: var(--color-bg-section);
  padding: clamp(48px, 7vw, 96px) 0;
}

.content-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}

.content-desc {
  font-size: clamp(13px, 1.3vw, 15px);
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.content-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.content-list li {
  font-size: clamp(13px, 1.3vw, 15px);
  font-weight: 500;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.content-img-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(10px, 1.5vw, 16px);
}

/* ===========================
   Pricing Section
=========================== */
.pricing {
  padding: clamp(48px, 7vw, 96px) 0;
  background: var(--color-bg);
}

.pricing-header {
  text-align: center;
  margin-bottom: clamp(32px, 4vw, 56px);
}

.pricing-sub {
  font-size: clamp(13px, 1.3vw, 15px);
  color: var(--color-text-muted);
  margin-top: 8px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(16px, 2.5vw, 32px);
  max-width: 800px;
  margin-inline: auto;
}

.pricing-card {
  background: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 3vw, 40px);
  display: flex;
  flex-direction: column;
  gap: clamp(16px, 2vw, 24px);
}

.pricing-card--featured {
  border-color: var(--color-primary);
  background: #FFF8F6;
  position: relative;
}

.pricing-badge {
  display: inline-flex;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: clamp(10px, 1.1vw, 12px);
  font-weight: 700;
  padding: 3px 12px;
  border-radius: var(--radius-full);
  width: fit-content;
}

.pricing-badge--gray {
  background: var(--color-text-muted);
}

.pricing-plan-name {
  font-size: clamp(16px, 1.8vw, 22px);
  font-weight: 700;
}

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-wrap: wrap;
}

.price-amount {
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.8vw, 36px);
  font-weight: 700;
  color: var(--color-primary);
}

.price-amount strong {
  font-size: clamp(28px, 3.5vw, 44px);
}

.price-note {
  font-size: clamp(12px, 1.2vw, 14px);
  color: var(--color-text-muted);
}

.pricing-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.pricing-features li {
  font-size: clamp(12px, 1.2vw, 14px);
  color: var(--color-text);
}

.pricing-cta {
  width: 100%;
  text-align: center;
}

.pricing-note {
  text-align: center;
  font-size: clamp(11px, 1.1vw, 13px);
  color: var(--color-text-muted);
  margin-top: clamp(16px, 2vw, 24px);
}

/* ===========================
   CTA Banner
=========================== */
.cta-banner {
  background: linear-gradient(135deg, #FEF0EA 0%, #F8E0D5 100%);
  padding: clamp(48px, 7vw, 96px) 0;
  position: relative;
  overflow: hidden;
}

.cta-banner-deco {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: clamp(100px, 14vw, 180px);
  height: clamp(100px, 14vw, 180px);
  border-radius: 50%;
  background: var(--color-primary-light);
  opacity: 0.15;
}

.cta-banner-deco--l { left: -40px; }
.cta-banner-deco--r { right: -40px; }

.cta-banner-inner {
  display: flex;
  align-items: center;
  gap: clamp(24px, 4vw, 56px);
  position: relative;
}

.cta-banner-text {
  flex: 1;
}

.cta-banner-title {
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.5vw, 32px);
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 12px;
}

.cta-banner-desc {
  font-size: clamp(13px, 1.3vw, 15px);
  color: var(--color-text-muted);
  margin-bottom: clamp(16px, 2vw, 24px);
}

.cta-banner-btn {
  font-size: clamp(13px, 1.4vw, 16px);
  padding: clamp(12px, 1.4vw, 16px) clamp(24px, 3vw, 40px);
}

/* ===========================
   Footer
=========================== */
.footer {
  background: #2C1A12;
  color: rgba(255,255,255,0.85);
  padding: clamp(40px, 5vw, 64px) 0 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: clamp(32px, 4vw, 48px);
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: clamp(32px, 5vw, 64px);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.logo--white .logo-name {
  color: var(--color-white);
}

.logo--white .logo-sub {
  color: rgba(255,255,255,0.55);
}

.logo--white .logo-icon {
  color: var(--color-primary-light);
}

.footer-desc {
  font-size: clamp(12px, 1.2vw, 13px);
  color: rgba(255,255,255,0.6);
  line-height: 1.8;
}

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

.sns-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  transition: background var(--transition);
}

.sns-icon:hover {
  background: var(--color-primary);
  opacity: 1;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(16px, 2.5vw, 32px);
}

.footer-nav-title {
  font-size: clamp(12px, 1.2vw, 14px);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-nav a {
  font-size: clamp(11px, 1.1vw, 13px);
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}

.footer-nav a:hover {
  color: var(--color-white);
  opacity: 1;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: clamp(16px, 2vw, 24px) 0;
  text-align: center;
  font-size: clamp(11px, 1.1vw, 12px);
  color: rgba(255,255,255,0.4);
}

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

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

/* ===========================
   Responsive
=========================== */
@media (max-width: 960px) {
  .nav,
  .nav-cta {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .mobile-menu {
    display: flex;
  }

  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-image {
    order: -1;
  }

  .hero-img-placeholder .placeholder-img {
    aspect-ratio: 16 / 7;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .content-inner {
    grid-template-columns: 1fr;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
  }

  .footer-top {
    grid-template-columns: 1fr;
  }

  .footer-nav {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .announcement-inner {
    justify-content: center;
  }

  .announcement-cta {
    display: none;
  }

  .hero-features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
    text-align: center;
  }

  .content-img-grid {
    grid-template-columns: 1fr;
  }

  .cta-banner-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-nav {
    grid-template-columns: repeat(2, 1fr);
  }
}