/* ===== Reset / Base ===== */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Zen Maru Gothic', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 400;
  color: #3a2a2e;
  background: #FFF9F8;
  line-height: 1.8;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; margin: 0; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Color Palette =====
   Primary Pink: #E8A5B5
   Deep Coral:   #D67284
   Soft Pink BG: #FFE8EE
   Cream BG:     #FFF9F8
   Text:         #3a2a2e
==================== */

.highlight-pink {
  color: #D67284;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 249, 248, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
  border-bottom: 1px solid rgba(214, 114, 132, 0.08);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  font-weight: 700;
  font-size: 22px;
  color: #D67284;
  letter-spacing: 0.05em;
}
.nav {
  display: flex;
  gap: 28px;
}
.nav a {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: #6a5a5e;
  transition: color 0.2s;
}
.nav a:hover {
  color: #D67284;
}
.nav-shop {
  background: linear-gradient(135deg, #E8A5B5 0%, #D67284 100%);
  color: white !important;
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 700 !important;
  box-shadow: 0 4px 12px rgba(214, 114, 132, 0.3);
}
.nav-shop:hover {
  color: white !important;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(214, 114, 132, 0.4);
}

/* ===== Hero ===== */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  padding: 80px 48px 100px;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  top: 40px;
  right: 80px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(232, 165, 181, 0.25) 0%, rgba(232, 165, 181, 0) 70%);
  border-radius: 50%;
  z-index: 0;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 1;
}
.hero-tag {
  display: inline-block;
  padding: 6px 18px;
  background: #FFE8EE;
  color: #D67284;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.15em;
  border-radius: 20px;
  margin-bottom: 24px;
}
.hero-question {
  font-size: 18px;
  color: #6a5a5e;
  margin: 0 0 12px;
  font-weight: 500;
}
.hero-title {
  font-size: 38px;
  font-weight: 700;
  line-height: 1.5;
  margin: 0 0 28px;
  letter-spacing: 0.02em;
}
.hero-accent {
  color: #D67284;
}
.hero-text {
  font-size: 16px;
  color: #6a5a5e;
  margin-bottom: 36px;
}
.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero-image {
  position: relative;
  z-index: 1;
}
.hero-image img {
  border-radius: 200px 200px 24px 24px;
  box-shadow: 0 20px 60px rgba(214, 114, 132, 0.15);
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.2s;
  border: 2px solid transparent;
  text-align: center;
}
.btn-primary {
  background: linear-gradient(135deg, #E8A5B5 0%, #D67284 100%);
  color: white;
  box-shadow: 0 8px 20px rgba(214, 114, 132, 0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(214, 114, 132, 0.4);
}
.btn-outline {
  border-color: #D67284;
  color: #D67284;
  background: white;
}
.btn-outline:hover {
  background: #FFE8EE;
}
.btn-large {
  padding: 18px 56px;
  font-size: 16px;
}

/* ===== Section Common ===== */
section {
  padding: 100px 0;
}
.section-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: #D67284;
  text-align: center;
  margin: 0 0 16px;
}
.section-title {
  text-align: center;
  font-size: 36px;
  font-weight: 700;
  line-height: 1.5;
  margin: 0 0 60px;
}

/* ===== About ===== */
.about {
  background: white;
  position: relative;
}
.about::before, .about::after {
  content: '';
  position: absolute;
  background: radial-gradient(circle, rgba(232, 165, 181, 0.15) 0%, rgba(232, 165, 181, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
}
.about::before {
  top: -50px;
  left: -100px;
  width: 300px;
  height: 300px;
}
.about::after {
  bottom: -80px;
  right: -120px;
  width: 400px;
  height: 400px;
}
.about-text {
  text-align: center;
  font-size: 16px;
  color: #5a4a4e;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

/* ===== Problem ===== */
.problem {
  background: linear-gradient(180deg, #FFF9F8 0%, #FFE8EE 100%);
}
.problem-lead {
  text-align: center;
  font-size: 16px;
  color: #5a4a4e;
  margin: 0 0 70px;
}
.problem-list {
  display: grid;
  gap: 40px;
}
.problem-card {
  background: white;
  border-radius: 24px;
  padding: 40px;
  box-shadow: 0 10px 40px rgba(214, 114, 132, 0.08);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.problem-card:nth-child(even) {
  grid-template-columns: 1fr 1fr;
}
.problem-card:nth-child(even) .problem-image {
  order: -1;
}
.problem-num {
  display: inline-block;
  padding: 6px 16px;
  background: #FFE8EE;
  color: #D67284;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  border-radius: 20px;
  margin-bottom: 16px;
}
.problem-title {
  font-size: 26px;
  font-weight: 700;
  margin: 0 0 16px;
  color: #3a2a2e;
}
.problem-text {
  font-size: 15px;
  color: #6a5a5e;
  margin: 0;
}
.problem-image img {
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

/* ===== Solution ===== */
.solution {
  background: white;
}
.solution-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}
.solution-image img {
  border-radius: 24px;
  box-shadow: 0 20px 50px rgba(214, 114, 132, 0.15);
}
.solution-subtitle {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.5;
  color: #D67284;
  margin: 0 0 24px;
}
.solution-text {
  font-size: 15px;
  color: #5a4a4e;
  margin: 0 0 28px;
}
.solution-points {
  display: grid;
  gap: 12px;
}
.solution-points li {
  font-size: 15px;
  color: #3a2a2e;
  padding: 12px 16px;
  background: #FFF9F8;
  border-radius: 8px;
  border-left: 3px solid #D67284;
}

.colors-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  background: #FFF9F8;
  border-radius: 24px;
  padding: 48px;
}
.colors-image img {
  border-radius: 16px;
}
.colors-title {
  font-size: 26px;
  font-weight: 700;
  margin: 0 0 16px;
}

/* ===== Brand Message ===== */
.brand-message {
  background: linear-gradient(135deg, #FFE8EE 0%, #FFF9F8 100%);
  text-align: center;
}
.brand-message-inner {
  max-width: 800px;
  margin: 0 auto;
}
.brand-quote {
  font-size: 24px;
  font-weight: 500;
  line-height: 2;
  color: #3a2a2e;
  margin: 0;
}

/* ===== Partnership ===== */
.partnership {
  background: linear-gradient(135deg, #D67284 0%, #E8A5B5 100%);
  color: white;
  text-align: center;
  padding: 90px 0;
}
.partnership-inner {
  max-width: 800px;
  margin: 0 auto;
}
.partnership-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: rgba(255, 255, 255, 0.9);
  margin: 0 0 16px;
}
.partnership-title {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.6;
  margin: 0 0 24px;
  color: white;
}
.partnership-title .highlight-pink {
  color: #FFE8EE;
  background: rgba(255, 255, 255, 0.15);
  padding: 0 8px;
  border-radius: 8px;
}
.partnership-text {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.95);
  margin: 0 0 36px;
  line-height: 2;
}
.partnership .btn-primary {
  background: white;
  color: #D67284;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}
.partnership .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

/* ===== Contact ===== */
.contact {
  background: white;
}
.contact-lead {
  text-align: center;
  font-size: 16px;
  color: #5a4a4e;
  margin: 0 0 50px;
}
.contact-form {
  max-width: 720px;
  margin: 0 auto;
  display: grid;
  gap: 20px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.contact-form label {
  display: block;
}
.contact-form label > span {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: #3a2a2e;
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}
.contact-form label em {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 8px;
  background: #D67284;
  color: white;
  font-size: 10px;
  font-style: normal;
  border-radius: 4px;
  letter-spacing: 0.1em;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid #f0d4dc;
  border-radius: 12px;
  background: #FFF9F8;
  font-family: inherit;
  font-size: 15px;
  color: #3a2a2e;
  transition: all 0.2s;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: #D67284;
  background: white;
  box-shadow: 0 0 0 4px rgba(214, 114, 132, 0.1);
}
.contact-form textarea {
  resize: vertical;
  min-height: 140px;
}
.form-submit {
  text-align: center;
  margin-top: 16px;
}
.form-note {
  font-size: 12px;
  color: #a08a8e;
  margin: 16px 0 0;
}

/* ===== Footer ===== */
.site-footer {
  background: #3a2a2e;
  color: #fff;
  padding: 60px 0 40px;
  text-align: center;
}
.footer-logo {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin: 0 0 8px;
  color: #FFE8EE;
}
.footer-tagline {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin: 0 0 24px;
}
.footer-meta {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.8;
}
.footer-meta small {
  display: inline-block;
  margin-top: 8px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav { display: none; }
  .hero {
    grid-template-columns: 1fr;
    padding: 50px 24px 70px;
    gap: 40px;
  }
  .hero-title { font-size: 30px; }
  .hero-image img { border-radius: 24px; }
  section { padding: 70px 0; }
  .section-title { font-size: 26px; margin-bottom: 40px; }
  .problem-card,
  .solution-hero,
  .colors-section {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 28px;
  }
  .problem-card:nth-child(even) .problem-image {
    order: 0;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .brand-quote { font-size: 18px; }
  .solution-subtitle { font-size: 24px; }
  .partnership-title { font-size: 22px; }
  .hero-question { font-size: 16px; }
}