.menu-toggle {
  display: none;
  border: none;
  background: rgba(47, 45, 83, 0.06);
  width: 44px;
  height: 44px;
  border-radius: 12px;
  padding: 8px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.12);
  transition: background 0.3s ease, transform 0.3s ease;
}

.menu-toggle span {
  width: 100%;
  height: 2px;
  background: var(--color-deep);
  border-radius: 999px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}
:root {
  --color-primary: #f7b500;
  --color-secondary: #f05178;
  --color-accent: #58c09b;
  --color-deep: #2f2d53;
  --color-light: #fffaf0;
  --color-text: #333;
  --header-height: 76px;
  font-size: 16px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Noto Sans JP", system-ui, sans-serif;
  color: var(--color-text);
  background-color: #fff;
  line-height: 1.7;
}

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

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

header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 12px rgba(15, 27, 56, 0.08);
  height: var(--header-height);
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 700;
  color: var(--color-deep);
  font-size: 1.1rem;
}

.logo-image {
  width: 54px;
  height: 54px;
  object-fit: contain;
  border-radius: 16px;
  box-shadow: 0 6px 18px rgba(240, 81, 120, 0.24);
}

nav ul {
  list-style: none;
  display: flex;
  gap: 22px;
  margin: 0;
  padding: 0;
}

nav a {
  font-weight: 500;
  color: #4a4760;
  transition: color 0.3s ease, transform 0.3s ease;
}

nav a:hover {
  color: var(--color-primary);
  transform: translateY(-1px);
}

.hero {
  position: relative;
  padding: calc(var(--header-height) + 120px) 0 140px;
  background: radial-gradient(circle at top right, rgba(247, 181, 0, 0.22), transparent 45%),
    radial-gradient(circle at top left, rgba(88, 192, 155, 0.18), transparent 40%),
    radial-gradient(circle at bottom right, rgba(240, 81, 120, 0.18), transparent 38%),
    var(--color-light);
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url("https://images.unsplash.com/photo-1525130413817-d45c1d127c42?auto=format&fit=crop&w=1400&q=80")
    center/cover no-repeat;
  opacity: 0.28;
  mix-blend-mode: multiply;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
  max-width: 680px;
}

.hero-title {
  font-size: clamp(2.2rem, 4.3vw, 3.4rem);
  font-weight: 700;
  color: var(--color-deep);
  line-height: 1.2;
  letter-spacing: 0.05em;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: #453f5d;
  background: rgba(255, 255, 255, 0.82);
  border-radius: 18px;
  padding: 22px 28px;
  box-shadow: 0 20px 40px rgba(38, 27, 67, 0.12);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  font-weight: 600;
  box-shadow: 0 16px 30px rgba(240, 81, 120, 0.32);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 22px 36px rgba(240, 81, 120, 0.42);
}

section {
  padding: 110px 0;
}

section:nth-of-type(even) {
  background: #fff7e6;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}

.section-eyebrow {
  display: inline-flex;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(247, 181, 0, 0.14);
  color: var(--color-deep);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin-bottom: 18px;
}

.section-title {
  font-size: clamp(1.9rem, 3vw, 2.7rem);
  font-weight: 700;
  color: var(--color-deep);
  margin-bottom: 18px;
}

.section-lead {
  color: #50496b;
  font-size: 1.05rem;
}

.card-grid {
  display: grid;
  gap: 26px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: #fff;
  border-radius: 24px;
  padding: 32px 28px;
  box-shadow: 0 16px 30px rgba(27, 33, 72, 0.1);
  border: 1px solid rgba(47, 45, 83, 0.08);
}

.card h4 {
  margin-top: 0;
  margin-bottom: 14px;
  font-weight: 700;
  color: var(--color-deep);
}

.nail-visuals {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  margin-top: 40px;
}

.nail-visuals img {
  border-radius: 20px;
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  height: auto;
  box-shadow: 0 14px 28px rgba(240, 81, 120, 0.28);
}

.sim-wrapper {
  display: flex;
  flex-direction: column;
  gap: 36px;
  align-items: center;
}

.sim-figure {
  position: relative;
  border-radius: 36px;
  overflow: hidden;
  box-shadow: 0 26px 48px rgba(31, 28, 58, 0.2);
  background: linear-gradient(140deg, rgba(247, 181, 0, 0.2), rgba(88, 192, 155, 0.2));
  width: 100%;
  max-width: 860px;
}

.sim-figure::after {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 30px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18);
  pointer-events: none;
}

.sim-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.sim-content {
  display: grid;
  gap: 24px;
  width: 100%;
  max-width: 860px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.sim-feature-card {
  background: linear-gradient(160deg, rgba(247, 181, 0, 0.18), #fff8dc);
  border: none;
  grid-column: 1 / -1;
}

.sim-qr-card {
  text-align: center;
}

.sim-qr-card img {
  width: 100%;
  max-width: 220px;
  margin: 18px auto 0;
  display: block;
  border-radius: 18px;
  box-shadow: 0 14px 28px rgba(47, 45, 83, 0.18);
}

@media (max-width: 640px) {
  .sim-content {
    grid-template-columns: 1fr;
  }

  .sim-feature-card {
    grid-column: auto;
  }
}

.sim-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.sim-process-card ol {
  padding-left: 22px;
}

.sim-process-card ol li + li {
  margin-top: 8px;
}

.sim-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

.badge-item {
  flex: 1 1 120px;
  min-width: 120px;
  background: rgba(47, 45, 83, 0.08);
  border-radius: 18px;
  padding: 18px 20px;
  display: grid;
  gap: 6px;
  justify-items: start;
}

.badge-title {
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--color-secondary);
}

.badge-text {
  font-size: 0.9rem;
  color: #4a4760;
}

.table-wrapper {
  overflow-x: auto;
  border-radius: 20px;
  box-shadow: 0 12px 26px rgba(38, 27, 67, 0.1);
  background: #fff;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 18px 22px;
  text-align: left;
  border-bottom: 1px solid rgba(47, 45, 83, 0.1);
}

th {
  background: rgba(247, 181, 0, 0.16);
  font-weight: 600;
  color: var(--color-deep);
}

tbody tr:last-child td {
  border-bottom: none;
}

.contact-wrapper {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: start;
}

form {
  display: grid;
  gap: 16px;
  background: #fff;
  padding: 32px;
  border-radius: 24px;
  box-shadow: 0 20px 36px rgba(27, 33, 72, 0.1);
}

label {
  font-weight: 600;
  color: var(--color-deep);
}

input,
textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(47, 45, 83, 0.18);
  font: inherit;
  background: #fffaf0;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  resize: vertical;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 4px rgba(240, 81, 120, 0.18);
  background: #fff;
}

textarea {
  min-height: 140px;
}

button {
  justify-self: start;
  padding: 14px 28px;
  border-radius: 999px;
  border: none;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 16px 28px rgba(240, 81, 120, 0.28);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 32px rgba(240, 81, 120, 0.34);
}

iframe {
  width: 100%;
  min-height: 320px;
  border: none;
  border-radius: 24px;
  box-shadow: 0 20px 36px rgba(15, 27, 56, 0.16);
}

footer {
  background: linear-gradient(160deg, var(--color-deep), #1f1c3a);
  color: rgba(255, 255, 255, 0.85);
  padding: 56px 0 40px;
}

.footer-top {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  align-items: start;
}

.footer-brand {
  display: grid;
  gap: 18px;
}

.footer-brand p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.76);
}

.footer-logo {
  width: 84px;
  height: auto;
  border-radius: 16px;
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.28);
}

.footer-nav h4,
.footer-contact h4,
.footer-social h4 {
  font-size: 1rem;
  margin: 0 0 16px;
  color: #fff;
}

.footer-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
  font-size: 0.95rem;
}

.footer-list a {
  color: rgba(255, 255, 255, 0.82);
  transition: color 0.3s ease;
}

.footer-list a:hover {
  color: var(--color-primary);
}

.footer-qr {
  margin-top: 18px;
  display: grid;
  gap: 8px;
  justify-items: start;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.72);
}

.footer-qr img {
  width: 96px;
  height: 96px;
  border-radius: 16px;
  background: #fff;
  object-fit: cover;
  box-shadow: 0 12px 22px rgba(88, 192, 155, 0.28);
}

.footer-social p {
  margin: 0 0 12px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.72);
}

.footer-social-links {
  display: grid;
  gap: 10px;
}

.footer-social-links a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 0.95rem;
  transition: background 0.3s ease, transform 0.3s ease;
}

.footer-social-links a:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.social-icon {
  font-size: 1.2rem;
}

.footer-bottom {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}

@media (max-width: 768px) {
  header {
    height: auto;
  }

  .header-inner {
    flex-direction: column;
    gap: 14px;
    padding: 12px 0 18px;
  }

  .menu-toggle {
    display: inline-flex;
    align-self: flex-end;
  }

  nav ul {
    flex-direction: column;
    gap: 12px;
    padding: 16px 0;
  }

  #primary-nav {
    display: none;
    width: 100%;
  }

  #primary-nav.is-open {
    display: block;
  }

  #primary-nav a {
    display: block;
    padding: 10px 0;
    text-align: center;
  }

  .header-inner {
    align-items: flex-start;
  }

  .logo {
    width: 100%;
    justify-content: flex-start;
  }

  nav {
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 18px;
    box-shadow: 0 12px 24px rgba(15, 27, 56, 0.12);
    padding: 0 20px;
  }

  .hero {
    padding: 120px 0 100px;
  }

  section {
    padding: 80px 0;
  }

  form {
    padding: 24px;
  }

  .sim-cta-group {
    justify-content: flex-start;
  }

  .sim-figure {
    max-width: 520px;
    margin: 0 auto;
  }

  .sim-badges {
    gap: 12px;
  }

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

  .footer-brand,
  .footer-contact,
  .footer-nav,
  .footer-social {
    justify-items: center;
  }

  .footer-list {
    justify-items: center;
  }

  .footer-qr {
    justify-items: center;
  }

  .footer-social-links a {
    justify-content: center;
  }
}