/* Base */
:root {
  /* Primary Palette */
  --primary-50: #e4f0f6;
  --primary-100: #badded;
  --primary-200: #8bccea;
  --primary-300: #56bceb;
  --primary-400: #1caef2;
  --primary-500: #0ea5e9;
  --primary-600: #0682bc;
  --primary-700: #01618e;
  --primary-800: #003f5c;
  --primary-900: #001c29;
  --primary-950: #00070a;

  /* Secondary Palette */
  --secondary-50: #ecf5f8;
  --secondary-100: #d6ebf5;
  --secondary-200: #bee2f3;
  --secondary-300: #a4dbf4;
  --secondary-400: #73cdf7;
  --secondary-500: #5bc5f5;
  --secondary-600: #25b5f8;
  --secondary-700: #01a0e9;
  --secondary-800: #007db8;
  --secondary-900: #005b85;
  --secondary-950: #003852;

  /* Accent Palette */
  --accent-50: #ecf5f8;
  --accent-100: #d6ebf5;
  --accent-200: #bee2f3;
  --accent-300: #a4dbf4;
  --accent-400: #87d4f8;
  --accent-500: #8bd6f8;
  --accent-600: #57c6fa;
  --accent-700: #20b8fe;
  --accent-800: #00a0eb;
  --accent-900: #007db8;
  --accent-950: #005b85;

  /* Semantic aliases */
  --color-bg: var(--secondary-50);
  --color-surface: #ffffff;
  --color-surface-alt: var(--secondary-100);
  --color-accent: var(--primary-400);
  --color-accent-dark: var(--primary-700);
  --color-pop: var(--accent-600);
  --color-text: #042235;
  --color-muted: #5b6f7d;
  --shadow-soft: 0 20px 45px rgba(1, 97, 142, 0.12);
  --radius-lg: 24px;
}

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

body {
  margin: 0;
  font-family: "Noto Sans JP", "Hiragino Sans", "Helvetica Neue", Arial, sans-serif;
  color: var(--color-text);
  background: linear-gradient(145deg, var(--secondary-50) 0%, #ffffff 60%, var(--primary-50) 100%);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
}

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

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
  padding: 64px 0;
}

.eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-brand-deep);
  font-weight: 600;
  margin-bottom: 12px;
}

.eyebrow--tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(14, 165, 233, 0.1);
  color: var(--primary-700);
  font-weight: 700;
}

h1,
h2,
h3 {
  line-height: 1.35;
  margin-bottom: 16px;
}

p {
  margin: 0 0 16px;
  color: var(--color-muted);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid rgba(1, 97, 142, 0.08);
  box-shadow: 0 8px 24px rgba(0, 31, 50, 0.08);
  z-index: 10;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.site-header--hidden {
  transform: translateY(-120%);
  box-shadow: none;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 20px;
  border-radius: 24px;
  background: transparent;
  border: none;
  box-shadow: none;
  font-weight: 700;
  color: #04324f;
}

.logo--hero {
  gap: 28px;
}

.logo-img {
  height: 80px;
  max-width: 320px;
  width: auto;
  filter: drop-shadow(0 6px 12px rgba(0, 31, 50, 0.2));
}

.logo--badge {
  padding: 0;
}

.logo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(1, 97, 142, 0.1);
  box-shadow: 0 10px 24px rgba(0, 31, 50, 0.15);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.logo__mark {
  background: linear-gradient(120deg, var(--primary-500), var(--primary-700));
  color: #fff;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
}

.logo__text {
  font-size: 1rem;
  letter-spacing: 0.08em;
}

.logo-caption__eyebrow {
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--primary-700);
  margin: 0 0 6px;
}

.logo-caption__copy {
  font-size: 1.2rem;
  margin: 0;
  color: var(--primary-500);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 16px;
  font-weight: 500;
}

.nav-cta {
  padding: 10px 20px;
  border-radius: 16px;
  border: 1px solid transparent;
  font-weight: 600;
  color: var(--primary-700);
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.nav-cta:hover {
  background: var(--primary-500);
  color: #fff;
  box-shadow: 0 8px 18px rgba(14, 165, 233, 0.25);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #f4fbfe 0%, #ecf7ff 60%, #ffffff 100%);
  border-bottom: 1px solid rgba(1, 97, 142, 0.05);
}

.hero__decor {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.blob,
.spark {
  position: absolute;
  border-radius: 999px;
  opacity: 0.65;
  filter: blur(0px);
}

.blob--one {
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.35) 0%, rgba(14, 165, 233, 0) 70%);
  top: -80px;
  right: 10%;
  animation: float 12s ease-in-out infinite;
}

.blob--two {
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(1, 97, 142, 0.25) 0%, rgba(1, 97, 142, 0) 70%);
  bottom: -60px;
  left: 15%;
  animation: float 10s ease-in-out infinite reverse;
}

.spark {
  width: 120px;
  height: 120px;
  border: 2px solid rgba(14, 165, 233, 0.25);
  opacity: 0.35;
}

.spark--one {
  top: 20%;
  left: 5%;
  animation: pulse 6s linear infinite;
}

.spark--two {
  bottom: 10%;
  right: 8%;
  animation: pulse 7s linear infinite reverse;
}

.hero__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 48px;
  padding-top: 80px;
  padding-bottom: 80px;
}

.hero__copy h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 20px;
  color: var(--primary-600);
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 14px;
  border-radius: 999px;
  background: rgba(67, 194, 255, 0.18);
  color: var(--color-brand-deep);
}

.hero__about-list {
  margin-bottom: 20px;
}

.hero__note {
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 24px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn--primary {
  border: 1px solid transparent;
  background: transparent;
  color: var(--primary-700);
  box-shadow: none;
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-400));
  color: #fff;
  box-shadow: 0 16px 28px rgba(14, 165, 233, 0.35);
}

.btn--ghost {
  border: 1px solid transparent;
  color: var(--primary-700);
  background: transparent;
}

.btn--ghost:hover {
  background: var(--secondary-100);
  color: var(--primary-800);
}

.btn--small {
  padding: 8px 16px;
  font-size: 0.9rem;
}

.hero__panel {
  position: relative;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(186, 221, 237, 0.8));
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: 0 25px 50px rgba(1, 97, 142, 0.12);
  border: 1px solid rgba(1, 97, 142, 0.08);
  overflow: hidden;
}

.hero__panel::after {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.25) 0%, rgba(14, 165, 233, 0) 70%);
  right: 16px;
  bottom: 12px;
  pointer-events: none;
  z-index: 0;
}

.hero__panel > * {
  position: relative;
  z-index: 1;
}

.pop-panel h3 {
  margin-top: 0;
  font-size: 1.2rem;
  color: var(--color-accent-dark);
}

.pop-panel__lead {
  font-size: 0.95rem;
  color: var(--color-muted);
  margin-bottom: 24px;
}

.panel-divider {
  height: 1px;
  background: linear-gradient(90deg, rgba(67, 194, 255, 0), rgba(67, 194, 255, 0.35), rgba(67, 194, 255, 0));
  margin: 16px 0 20px;
}

.panel-subtitle {
  margin: 0 0 4px;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
}

.stat-list--grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 18px;
}

.stat-list--grid li {
  padding: 12px 16px;
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(67, 194, 255, 0.08), rgba(214, 239, 255, 0.9));
  border: 1px solid rgba(67, 194, 255, 0.25);
}

.stat-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.stat-list__label {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--color-muted);
  letter-spacing: 0.08em;
}

.stat-list__value {
  display: block;
  font-size: 2rem;
  color: var(--primary-700);
  margin: 6px 0;
}

.stat-list small {
  color: var(--color-muted);
}

/* Sections */
.section {
  background: var(--color-surface);
  scroll-margin-top: 140px;
}

.section--muted {
  background: linear-gradient(180deg, rgba(236, 245, 248, 0.9), rgba(228, 244, 249, 0.7));
}

.section + .section {
  border-top: 1px solid rgba(47, 183, 217, 0.15);
}

.section__header {
  width: 100%;
  max-width: none;
  margin-bottom: 48px;
}

.section__lead {
  font-size: 1rem;
  color: var(--color-muted);
}

.section__header h2 {
  color: var(--primary-700);
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.overview-grid dl {
  margin: 0;
  padding: 24px;
  border-radius: 16px;
  border: 1px solid transparent;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(228, 245, 248, 0.9));
}

.overview-grid dt {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-brand-deep);
  margin-bottom: 8px;
}

.about-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.about-list li {
  position: relative;
  padding-left: 26px;
  font-weight: 600;
  color: var(--color-text);
}

.about-list li::before {
  content: "✺";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-brand-bright);
}

.history-card__lead {
  color: var(--color-muted);
  margin-bottom: 24px;
}

.history-list {
  margin: 0 0 24px;
  padding: 0;
}

.history-list dt {
  font-weight: 700;
  color: var(--color-brand-deep);
}

.history-list dd {
  margin: 4px 0 16px;
  color: var(--color-text);
}

.history-list__bullets {
  margin: 0;
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.history-list__bullets li {
  color: var(--color-text);
  line-height: 1.6;
  padding: 12px 0;
  border-top: 1px solid rgba(1, 97, 142, 0.12);
}

.history-list__bullets li:first-child {
  border-top: none;
  padding-top: 0;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card--accent {
  background: linear-gradient(135deg, rgba(67, 194, 255, 0.12), rgba(214, 239, 255, 0.9));
  border: 1px solid rgba(67, 194, 255, 0.3);
}

.card__eyebrow {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  margin: 0;
}

.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.chip {
  padding: 8px 16px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-brand-deep);
  background: rgba(214, 239, 255, 0.9);
  border: 1px solid rgba(67, 194, 255, 0.25);
  box-shadow: 0 10px 20px rgba(67, 194, 255, 0.2);
}

.chip--sky {
  background: rgba(67, 194, 255, 0.3);
}

.chip--candy {
  background: rgba(214, 239, 255, 0.9);
}

.chip--sunset {
  background: rgba(67, 194, 255, 0.25);
}

.services-detail {
  padding-top: 32px;
}

.service-intro {
  background: rgba(214, 239, 255, 0.6);
  border: 1px solid rgba(67, 194, 255, 0.25);
  border-radius: 24px;
  padding: 32px;
  margin-bottom: 32px;
  box-shadow: 0 20px 40px rgba(67, 194, 255, 0.18);
}

.service-intro p {
  margin-bottom: 12px;
}

.service-intro strong {
  color: var(--primary-700);
}

.service-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.service-card {
  background: var(--color-surface);
  border-radius: 20px;
  padding: 28px;
  border: 1px solid rgba(67, 194, 255, 0.25);
  box-shadow: 0 18px 32px rgba(15, 78, 122, 0.1);
}

.service-card h3 {
  margin-top: 0;
  margin-bottom: 16px;
  color: var(--color-brand-deep);
}

.service-card__note {
  font-size: 0.95rem;
  color: var(--color-brand-deep);
}

.service-card__note strong {
  color: var(--primary-600);
}

.service-note {
  background: linear-gradient(135deg, rgba(67, 194, 255, 0.12), rgba(214, 239, 255, 0.9));
  border-radius: 24px;
  padding: 36px;
  border: 1px solid rgba(67, 194, 255, 0.3);
  box-shadow: 0 18px 36px rgba(67, 194, 255, 0.25);
}

.service-note h3 {
  margin-top: 0;
  margin-bottom: 12px;
  color: var(--color-brand-deep);
}

.text-highlight {
  color: var(--primary-600);
  font-weight: 700;
}

.contact-section {
  background: linear-gradient(180deg, rgba(228, 244, 249, 0.6), rgba(255, 255, 255, 0.95));
}

.contact-card {
  background: var(--color-surface);
  border-radius: 28px;
  padding: 32px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(1, 97, 142, 0.08);
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-between;
  align-items: center;
}

.contact-card__lead {
  font-size: 1.05rem;
  color: var(--color-brand-deep);
  font-weight: 600;
}

.contact-card__list {
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--color-text);
}

.contact-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.contact-actions .btn {
  min-width: 200px;
}

.card h3 {
  margin: 0;
}

.card p {
  margin: 0;
}

/* Footer */
.site-footer {
  background: var(--primary-900);
  color: rgba(255, 255, 255, 0.9);
}

.site-footer .container {
  padding: 48px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo--footer .logo__mark {
  background: rgba(255, 255, 255, 0.15);
}

.site-footer__copy {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, 0.65);
}

.site-footer__links {
  display: flex;
  gap: 24px;
  font-weight: 500;
}

.site-footer__links a {
  color: rgba(255, 255, 255, 0.9);
}

/* Responsive tweaks */
@media (max-width: 960px) {
  .site-header__inner {
    flex-direction: column;
    gap: 12px;
  }

  .logo-badge {
    width: 100%;
    justify-content: center;
  }

  .logo-img {
    height: 72px;
  }

  .site-nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .hero__panel {
    order: 2;
  }
}

@media (max-width: 720px) {
  .container {
    padding: 40px 0;
  }

  .hero__copy {
    text-align: center;
  }

  .hero__about-list {
    align-items: center;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn--primary,
  .btn--ghost {
    width: 100%;
    justify-content: center;
  }

  .service-intro,
  .service-card,
  .service-note {
    padding: 24px;
  }

  .service-list {
    grid-template-columns: 1fr;
  }

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

  .contact-actions {
    width: 100%;
    flex-direction: column;
  }

  .site-footer .container {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .site-footer__links {
    width: 100%;
    flex-direction: column;
    gap: 12px;
  }

  .site-footer__links .btn {
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .logo-img {
    height: 60px;
  }

  .logo-badge {
    padding: 4px 12px;
  }

  .site-nav {
    gap: 8px;
  }

  .site-nav .btn {
    flex: 1 1 100%;
    text-align: center;
  }

  .hero__panel {
    padding: 24px;
  }

  .service-note {
    padding: 24px;
  }

  .contact-card {
    padding: 20px;
  }
}

@keyframes float {
  0% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(20px, -30px, 0);
  }
  100% {
    transform: translate3d(0, 0, 0);
  }
}

@keyframes pulse {
  0% {
    transform: scale(0.9);
    opacity: 0.2;
  }
  50% {
    transform: scale(1.1);
    opacity: 0.5;
  }
  100% {
    transform: scale(0.9);
    opacity: 0.2;
  }
}