@font-face {
  font-family: "LINE Seed JP";
  src:
    url("fonts/LINE_Seed_JP/LINESeedJP_20241105/Web/WOFF2/LINESeedJP_OTF_Th.woff2")
      format("woff2");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "LINE Seed JP";
  src:
    url("fonts/LINE_Seed_JP/LINESeedJP_20241105/Web/WOFF2/LINESeedJP_OTF_Rg.woff2")
      format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "LINE Seed JP";
  src:
    url("fonts/LINE_Seed_JP/LINESeedJP_20241105/Web/WOFF2/LINESeedJP_OTF_Bd.woff2")
      format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "LINE Seed JP";
  src:
    url("fonts/LINE_Seed_JP/LINESeedJP_20241105/Web/WOFF2/LINESeedJP_OTF_Eb.woff2")
      format("woff2");
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: light;
  --bg: #fff6fb;
  --bg-strong: #ffeef8;
  --ink: #2b2b2b;
  --ink-soft: #5b5b5b;
  --accent: #ff7bb8;
  --accent-soft: #ffe0f0;
  --accent-deep: #f05aa0;
  --highlight: #6bd6cf;
  --card: #ffffff;
  --border: rgba(255, 123, 184, 0.25);
  --shadow: 0 18px 40px rgba(240, 90, 160, 0.18);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --font-sans: "LINE Seed JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  background-image:
    radial-gradient(circle at 10% 10%, rgba(255, 123, 184, 0.18) 0, rgba(255, 123, 184, 0.18) 2px, transparent 2px),
    radial-gradient(circle at 80% 20%, rgba(107, 214, 207, 0.16) 0, rgba(107, 214, 207, 0.16) 2px, transparent 2px);
  background-size: 120px 120px;
  color: var(--ink);
  line-height: 1.75;
}

.page {
  position: relative;
  overflow: hidden;
}

.page::before,
.page::after {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle at top, #ffd1ea, transparent 70%);
  opacity: 0.75;
  z-index: -1;
}

.page::before {
  top: -200px;
  left: -120px;
}

.page::after {
  bottom: -200px;
  right: -180px;
  background: radial-gradient(circle at top, #c9f3ef, transparent 70%);
}

.container {
  width: min(1120px, 90vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(255, 246, 251, 0.85);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}

.brand-mark {
  font-size: 20px;
  color: var(--accent);
}

.brand-name {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.nav {
  display: flex;
  gap: 22px;
  font-size: 15px;
}

.nav a {
  color: var(--ink-soft);
  text-decoration: none;
}

.nav a:hover {
  color: var(--ink);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  border: 1px solid transparent;
  transition: 0.2s ease;
}

.button.primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 12px 24px rgba(255, 123, 184, 0.35);
}

.button.primary:hover {
  transform: translateY(-1px);
  background: var(--accent-deep);
}

.button.outline {
  border-color: var(--accent);
  color: var(--accent);
  background: transparent;
}

.button.outline:hover {
  background: var(--accent-soft);
}

.button.ghost {
  border-color: var(--border);
  color: var(--ink);
  background: white;
}

.hero {
  padding: 90px 0 60px;
}

.hero-grid {
  display: grid;
  gap: 40px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}

.eyebrow {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.24em;
  color: var(--accent-deep);
  margin-bottom: 16px;
}

.hero h1 {
  font-weight: 800;
  font-size: clamp(2.2rem, 3.8vw, 3.6rem);
  line-height: 1.2;
  margin-bottom: 18px;
}

.hero .accent {
  color: var(--accent);
}

.lead {
  font-size: 1.05rem;
  color: var(--ink-soft);
  margin-bottom: 24px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.hero-meta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--ink-soft);
}

.hero-meta span {
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--bg-strong);
  border: 1px solid rgba(255, 123, 184, 0.2);
}

.hero-visual {
  position: relative;
}

.glass-card {
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.glass-header {
  display: flex;
  gap: 8px;
  padding: 16px 20px;
  background: linear-gradient(135deg, rgba(255, 123, 184, 0.2), rgba(107, 214, 207, 0.2));
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.7;
}

.glass-body {
  padding: 28px;
  display: grid;
  gap: 18px;
}

.metric {
  background: white;
  border-radius: var(--radius-md);
  padding: 18px;
  border: 1px solid var(--border);
}

.metric-label {
  font-size: 13px;
  color: var(--ink-soft);
}

.metric-value {
  font-size: 2rem;
  font-weight: 800;
  margin: 8px 0 4px;
  color: var(--accent-deep);
}

.metric-note {
  font-size: 12px;
  color: var(--ink-soft);
}

.badge-stack {
  position: absolute;
  right: -10px;
  bottom: -30px;
  display: grid;
  gap: 10px;
}

.badge {
  padding: 10px 16px;
  background: var(--card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  box-shadow: 0 10px 20px rgba(255, 123, 184, 0.2);
  font-size: 13px;
}

.section-title {
  text-align: left;
  margin-bottom: 32px;
}

.section-title h2 {
  font-size: clamp(1.8rem, 2.4vw, 2.6rem);
  font-weight: 800;
  margin-bottom: 10px;
}

.section-title p {
  color: var(--ink-soft);
}

.pain,
.features,
.workflow,
.integrations,
.stats,
.faq,
.contact {
  padding: 70px 0;
}

.pain-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: 0 10px 20px rgba(255, 123, 184, 0.14);
}

.feature-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.feature-card {
  background: var(--card);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--border);
}

.feature-card h3 {
  margin-bottom: 12px;
}

.feature-card ul {
  list-style: none;
  display: grid;
  gap: 8px;
  color: var(--ink-soft);
  font-size: 14px;
}

.feature-card li::before {
  content: "*";
  margin-right: 8px;
  color: var(--accent);
}

.workflow {
  background: linear-gradient(145deg, rgba(255, 123, 184, 0.08), rgba(201, 243, 239, 0.4));
}

.timeline {
  display: grid;
  gap: 18px;
}

.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  padding: 18px 20px;
  background: var(--card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.step-number {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--accent);
}

.integration-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.integration-card {
  padding: 20px;
  background: var(--card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.stats {
  padding-top: 0;
}

.stats-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.stat-card {
  background: var(--accent);
  color: white;
  padding: 26px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
}

.stat-value {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.faq-grid {
  display: grid;
  gap: 14px;
}

.faq-item {
  background: var(--card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  padding: 16px 20px;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item p {
  margin-top: 10px;
  color: var(--ink-soft);
}

.contact {
  background: var(--bg-strong);
}

.contact-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: center;
}

.contact-card {
  background: var(--card);
  border-radius: var(--radius-md);
  padding: 24px;
  border: 1px solid var(--border);
}

.contact-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.contact-note {
  font-size: 12px;
  color: var(--ink-soft);
  margin-top: 12px;
}

.site-footer {
  padding: 40px 0 60px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
}

.footer-note {
  font-size: 13px;
  color: var(--ink-soft);
}

.footer-links {
  display: flex;
  gap: 18px;
  align-items: center;
}

.footer-links a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 14px;
}

.footer-links a:hover {
  color: var(--ink);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: 0.6s ease;
}

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

@media (max-width: 900px) {
  .nav {
    display: none;
  }

  .badge-stack {
    position: static;
    margin-top: 16px;
  }
}

@media (max-width: 600px) {
  .header-inner {
    flex-direction: column;
  }

  .hero {
    padding-top: 60px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .contact-row {
    flex-direction: column;
    align-items: flex-start;
  }
}