:root {
  --ink: #eef2fb;
  --ink-soft: #c3cee6;
  --muted: #8b99b8;
  --navy: #0a1128;
  --navy-2: #131d3a;
  --navy-3: #1e2a4a;
  --line: rgba(238, 242, 251, 0.12);
  --lime: #a3e635;
  --cyan: #38bdf8;
  --blue: #3b82f6;
  --max: 72rem;
  --font-display: "Outfit", "Hiragino Sans", "Noto Sans JP", sans-serif;
  --font-body: "IBM Plex Sans JP", "Hiragino Sans", "Noto Sans JP", sans-serif;
  --grad: linear-gradient(120deg, var(--lime), #2dd4bf, var(--blue));
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-body);
  background:
    radial-gradient(1000px 520px at 8% -8%, rgba(163, 230, 53, 0.14), transparent 55%),
    radial-gradient(900px 480px at 100% 0%, rgba(59, 130, 246, 0.18), transparent 50%),
    linear-gradient(180deg, #0c1430 0%, var(--navy) 42%, #070d1c 100%);
  min-height: 100vh;
  line-height: 1.7;
}

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

a {
  color: var(--cyan);
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--lime);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: rgba(10, 17, 40, 0.82);
  border-bottom: 1px solid var(--line);
}

.site-header__inner,
.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: inherit;
}

.brand img {
  width: auto;
  height: clamp(40px, 9vw, 52px);
  border-radius: 0.55rem;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.1rem;
  font-size: 0.92rem;
}

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

.nav a:hover {
  color: #fff;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(3rem, 9vw, 6.5rem) 0 clamp(2.5rem, 7vw, 5rem);
}

.hero__grid {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
  display: grid;
  gap: clamp(2rem, 5vw, 3.5rem);
  align-items: end;
}

@media (min-width: 860px) {
  .hero__grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.hero__brand {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 10vw, 5.8rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 0.95;
  margin: 0;
  color: #fff;
  animation: rise 0.9s ease both;
}

.hero__kana {
  margin: 0.55rem 0 1.1rem;
  font-size: clamp(1rem, 2.6vw, 1.2rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: rise 0.9s ease 0.05s both;
}

.hero__headline {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3.4vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.35;
  margin: 0 0 0.85rem;
  max-width: 18ch;
  color: #fff;
  animation: rise 0.9s ease 0.1s both;
}

.hero__lead {
  margin: 0;
  max-width: 34rem;
  color: var(--muted);
  font-size: clamp(0.98rem, 2.2vw, 1.08rem);
  animation: rise 0.9s ease 0.16s both;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
  animation: rise 0.9s ease 0.24s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.75rem;
  padding: 0.65rem 1.15rem;
  border-radius: 0.55rem;
  border: 1px solid transparent;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease,
    border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--grad);
  color: #0a1128;
}

.btn--primary:hover {
  filter: brightness(1.05);
  color: #0a1128;
}

.btn--ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

.btn--ghost:hover {
  border-color: rgba(163, 230, 53, 0.55);
  color: #fff;
}

.hero__panel {
  position: relative;
  min-height: 16rem;
  border-radius: 1.25rem;
  padding: 1.35rem;
  background:
    linear-gradient(160deg, rgba(163, 230, 53, 0.12), rgba(59, 130, 246, 0.18)),
    linear-gradient(180deg, #152047, #0a1128);
  color: #eef2fb;
  overflow: hidden;
  border: 1px solid var(--line);
  animation: float-in 1.1s ease 0.2s both;
}

.hero__panel::before {
  content: "";
  position: absolute;
  inset: -20% auto auto -10%;
  width: 18rem;
  height: 18rem;
  border-radius: 50%;
  background: rgba(163, 230, 53, 0.1);
  animation: drift 10s ease-in-out infinite;
}

.hero__panel::after {
  content: "";
  position: absolute;
  right: -3rem;
  bottom: -4rem;
  width: 14rem;
  height: 14rem;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.18);
  animation: drift 12s ease-in-out infinite reverse;
}

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

.hero__logo-mark {
  width: min(56%, 180px);
  margin: 0 auto 1rem;
  border-radius: 1rem;
  animation: rise 1s ease 0.15s both;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.1rem;
  justify-content: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 1.85rem;
  padding: 0.2rem 0.7rem;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.hero__panel h2 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vw, 1.65rem);
  margin: 0 0 0.55rem;
  letter-spacing: -0.02em;
  line-height: 1.25;
  text-align: center;
}

.hero__panel p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
  text-align: center;
}

.section {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
}

.section--alt {
  background: rgba(19, 29, 58, 0.55);
  border-block: 1px solid var(--line);
}

.section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3vw, 1.9rem);
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
  color: #fff;
}

.section .lead {
  margin: 0 0 1.5rem;
  color: var(--muted);
  max-width: 40rem;
}

.feature-list {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 720px) {
  .feature-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-list li {
  padding: 1.1rem 1.15rem 1.2rem;
  border-top: 2px solid transparent;
  border-image: var(--grad) 1;
  background: rgba(10, 17, 40, 0.55);
}

.feature-list strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
  color: #fff;
}

.feature-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.status-strip {
  display: grid;
  gap: 1rem;
}

@media (min-width: 720px) {
  .status-strip {
    grid-template-columns: 1fr 1fr;
  }
}

.status-strip article {
  padding: 1.25rem 1.3rem;
  background: rgba(10, 17, 40, 0.65);
  border: 1px solid var(--line);
}

.status-strip h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: #fff;
}

.status-strip p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.contact {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 800px) {
  .contact {
    grid-template-columns: 1fr 1.1fr;
    align-items: start;
  }
}

.contact-note {
  margin: 0;
  color: var(--muted);
}

.contact-note code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.86em;
  background: var(--navy-3);
  padding: 0.1em 0.35em;
  border-radius: 0.25rem;
  color: var(--ink-soft);
}

.contact-form {
  display: grid;
  gap: 0.85rem;
  padding: 1.2rem;
  background: rgba(10, 17, 40, 0.7);
  border: 1px solid var(--line);
}

.contact-form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0.45rem;
  padding: 0.7rem 0.8rem;
  font: inherit;
  background: var(--navy-2);
  color: var(--ink);
}

.contact-form textarea {
  min-height: 8rem;
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  outline: 2px solid rgba(56, 189, 248, 0.35);
  border-color: var(--cyan);
}

.contact-form__honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.contact-status {
  margin: 0;
  padding: 0.85rem 1rem;
  border-radius: 0.45rem;
  font-size: 0.92rem;
}

.contact-status--pending {
  color: var(--ink-soft);
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.contact-status--success {
  color: #bbf7d0;
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.35);
}

.contact-status--error {
  color: #fecaca;
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.35);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0 2.5rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.site-footer__inner {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  justify-content: space-between;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.1rem;
}

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

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

.legal-page {
  padding: 2.5rem 0 4rem;
}

.legal-page h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  letter-spacing: -0.03em;
  margin: 0 0 0.5rem;
  color: #fff;
}

.legal-page .meta {
  color: var(--muted);
  margin: 0 0 2rem;
  font-size: 0.92rem;
}

.legal-page h2 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin: 2rem 0 0.6rem;
  color: #fff;
}

.legal-page p,
.legal-page li {
  color: var(--ink-soft);
}

.legal-page ul {
  padding-left: 1.2rem;
}

.legal-page .replace {
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.28);
  padding: 0.85rem 1rem;
  margin: 1rem 0 1.5rem;
  font-size: 0.92rem;
  color: #fde68a;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float-in {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes drift {
  0%,
  100% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(18px, -12px);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}