:root {
  --bg:           #FBFCFD;
  --bg-elev:      #FFFFFF;
  --surface:      #F4F7FB;
  --ink:          #0B1220;
  --ink-2:        #1B2436;
  --muted:        #5A6478;
  --muted-2:      #8A93A4;
  --line:         #E4E9F0;
  --line-2:       #EEF1F6;
  --brand:        #1E50E8;
  --brand-dark:   #1742C2;
  --brand-glow:   rgba(30, 80, 232, 0.12);

  --font-sans: "Hanken Grotesk", "Zen Kaku Gothic New", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-jp:   "Zen Kaku Gothic New", "Hanken Grotesk", -apple-system, sans-serif;
  --font-serif:"Fraunces", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --maxw: 1180px;
  --pad:  clamp(20px, 5vw, 56px);
  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 16px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-jp);
  font-weight: 400;
  line-height: 1.7;
  font-feature-settings: "palt" 1;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Subtle dotted grid background */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(circle, rgba(11, 18, 32, 0.045) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  z-index: 0;
  mask-image: linear-gradient(180deg, rgba(0,0,0,1) 0%, rgba(0,0,0,0.4) 60%, rgba(0,0,0,0) 100%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,1) 0%, rgba(0,0,0,0.4) 60%, rgba(0,0,0,0) 100%);
}

::selection { background: var(--brand); color: #fff; }
a { color: inherit; text-decoration: none; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--pad);
  position: relative;
  z-index: 1;
}

/* ───────── Brand logo (inline SVG) ───────── */
.brand-logo {
  width: 24px;
  height: 24px;
  border-radius: 5px;
  flex-shrink: 0;
}
.brand-logo.sm { width: 20px; height: 20px; border-radius: 4px; }

/* ───────── Navigation ───────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  background: rgba(251, 252, 253, 0.78);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-jp);
  letter-spacing: -0.005em;
}
.brand-mark {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  padding: 8px 14px;
  font-size: 14px;
  color: var(--muted);
  border-radius: var(--radius-sm);
  transition: color 0.18s ease, background 0.18s ease;
}
.nav-links a:hover {
  color: var(--ink);
  background: var(--surface);
}
.nav-cta {
  padding: 8px 14px;
  font-size: 13px;
  color: var(--ink) !important;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg-elev);
  transition: border-color 0.18s ease;
}
.nav-cta:hover {
  border-color: var(--ink) !important;
  background: var(--bg-elev) !important;
}
@media (max-width: 640px) {
  .nav-links a:not(.nav-cta) { display: none; }
  .brand-mark { font-size: 15px; }
}

/* ───────── Hero ───────── */
.hero {
  position: relative;
  padding-block: clamp(96px, 16vh, 180px) clamp(80px, 12vh, 140px);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  top: -20%;
  right: -10%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, var(--brand-glow) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.hero-lead {
  max-width: 820px;
  font-size: clamp(20px, 2.6vw, 32px);
  line-height: 1.75;
  letter-spacing: -0.01em;
  color: var(--ink-2);
  font-weight: 400;
  margin: 0 0 56px;
  opacity: 0;
  animation: rise 0.9s cubic-bezier(.2,.7,.2,1) 0.15s forwards;
}
.hero-lead .name-en {
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--brand);
  font-weight: 500;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  opacity: 0;
  animation: rise 0.9s cubic-bezier(.2,.7,.2,1) 0.35s forwards;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: transform 0.18s ease, box-shadow 0.25s ease, background 0.18s ease, border-color 0.18s ease;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary {
  background: var(--ink);
  color: #fff;
  box-shadow: 0 1px 0 rgba(255,255,255,0.06) inset, 0 8px 24px -10px rgba(11,18,32,0.5);
}
.btn-primary:hover {
  background: var(--brand);
  box-shadow: 0 1px 0 rgba(255,255,255,0.1) inset, 0 12px 28px -10px var(--brand-glow);
  transform: translateY(-1px);
}
.btn-primary .arrow { transition: transform 0.2s ease; }
.btn-primary:hover .arrow { transform: translateX(3px); }
.btn-ghost {
  color: var(--ink);
  border-color: var(--line);
  background: var(--bg-elev);
}
.btn-ghost:hover { border-color: var(--ink); }

/* ───────── Section base ───────── */
section {
  position: relative;
  padding-block: clamp(80px, 12vh, 140px);
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 64px;
  flex-wrap: wrap;
}
.section-label {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--brand);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}
.section-label::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--brand);
  border-radius: 50%;
}
.section-title {
  font-family: var(--font-jp);
  font-size: clamp(28px, 3.6vw, 44px);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -0.015em;
  margin: 0;
  max-width: 16em;
}
.section-desc {
  max-width: 440px;
  font-size: 15px;
  color: var(--muted);
  line-height: 1.85;
  margin: 0;
}

/* ───────── Services ───────── */
#services {
  background: linear-gradient(180deg, transparent, var(--surface) 30%, var(--surface) 70%, transparent);
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
@media (max-width: 720px) {
  .services-grid { grid-template-columns: 1fr; }
}
.service {
  background: var(--bg-elev);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: background 0.2s ease;
  position: relative;
}
.service:hover { background: #fff; }
.service::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 0%, var(--brand-glow) 200%);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.service:hover::after { opacity: 1; }
.service-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted-2);
  letter-spacing: 0.08em;
}
.service h3 {
  margin: 0;
  font-family: var(--font-jp);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}
.service h3 .en {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  color: var(--muted-2);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.service p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}
.service ul {
  margin: auto 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 8px;
  padding-top: 8px;
}
.service ul li {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: var(--bg);
}

/* ───────── Company ───────── */
.company-table {
  width: 100%;
  max-width: 820px;
  border-collapse: collapse;
  border-top: 1px solid var(--ink-2);
}
.company-table tr { border-bottom: 1px solid var(--line); }
.company-table th,
.company-table td {
  padding: 18px 12px;
  text-align: left;
  font-size: 14.5px;
  line-height: 1.7;
  vertical-align: top;
}
.company-table th {
  width: 180px;
  font-weight: 500;
  color: var(--muted);
  font-family: var(--font-sans);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding-top: 22px;
}
.company-table td {
  color: var(--ink-2);
  font-weight: 400;
}
.company-table td .sub {
  display: block;
  font-size: 12px;
  color: var(--muted-2);
  margin-top: 4px;
  font-family: var(--font-mono);
}
@media (max-width: 540px) {
  .company-table th, .company-table td { display: block; width: 100%; padding: 6px 0; }
  .company-table th { padding-top: 16px; }
  .company-table td { padding-bottom: 16px; }
}

/* ───────── Contact (simple) ───────── */
.contact-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}
.email-block {
  display: inline-flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px 32px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.25s ease;
}
.email-block:hover {
  border-color: var(--brand);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -12px var(--brand-glow);
}
.email-block .label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted-2);
}
.email-block .addr {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--ink);
  letter-spacing: 0.01em;
}
.email-note {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted-2);
  letter-spacing: 0.04em;
}

/* ───────── Footer ───────── */
footer {
  border-top: 1px solid var(--line);
  padding-block: 36px;
  margin-top: 40px;
}
.foot-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.foot-mark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-jp);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.005em;
}
.foot-meta {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--muted-2);
  letter-spacing: 0.04em;
}

/* ───────── Animations ───────── */
@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s cubic-bezier(.2,.7,.2,1), transform 0.8s cubic-bezier(.2,.7,.2,1);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-delay: 0ms !important;
    transition-duration: 0.001ms !important;
  }
}

/* ───────── Refinement layer 2026-05 ───────── */
:root {
  --brand-soft: rgba(30, 80, 232, 0.075);
  --shadow-soft: 0 24px 80px -48px rgba(11, 18, 32, 0.55);
}

body {
  background:
    radial-gradient(circle at 78% 8%, rgba(30, 80, 232, 0.10), transparent 34vw),
    radial-gradient(circle at 12% 30%, rgba(30, 80, 232, 0.045), transparent 28vw),
    var(--bg);
}

.brand-logo {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  box-shadow: 0 8px 18px -12px rgba(30,80,232,.9);
}
.brand-logo.sm {
  width: 22px;
  height: 22px;
  border-radius: 6px;
}
.brand-mark {
  letter-spacing: 0.02em;
}
.nav-inner {
  height: 68px;
}
.nav.scrolled {
  background: rgba(251, 252, 253, 0.88);
  box-shadow: 0 8px 30px -28px rgba(11,18,32,.55);
}
.nav-cta {
  color: #fff !important;
  background: var(--ink);
  border-color: var(--ink);
}
.nav-cta:hover {
  color: #fff !important;
  background: var(--brand) !important;
  border-color: var(--brand) !important;
}

.hero {
  padding-block: clamp(86px, 14vh, 150px) clamp(70px, 10vh, 116px);
}
.hero::after {
  width: 760px;
  height: 760px;
  opacity: .95;
}
.hero-inner {
  display: block;
}
.hero-copy {
  max-width: 980px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 26px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--brand);
  opacity: 0;
  animation: rise 0.85s cubic-bezier(.2,.7,.2,1) .05s forwards;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: currentColor;
}
.hero-title {
  margin: 0 0 26px;
  max-width: 980px;
  font-size: clamp(42px, 7vw, 76px);
  line-height: 1.08;
  letter-spacing: -0.055em;
  font-weight: 600;
  color: var(--ink);
  opacity: 0;
  animation: rise 0.9s cubic-bezier(.2,.7,.2,1) .12s forwards;
}
.hero-lead {
  max-width: 900px;
  font-size: clamp(16px, 1.55vw, 20px);
  line-height: 2;
  color: var(--muted);
  margin-bottom: 42px;
}
.hero-panel {
  position: relative;
  padding: 30px;
  border: 1px solid rgba(228, 233, 240, .9);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.70));
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  opacity: 0;
  transform: translateY(16px) scale(.98);
  animation: heroPanel 0.9s cubic-bezier(.2,.7,.2,1) .35s forwards;
}
.hero-panel::before {
  content: "";
  position: absolute;
  inset: -40% -20% auto auto;
  width: 230px;
  height: 230px;
  background: radial-gradient(circle, var(--brand-soft), transparent 70%);
  pointer-events: none;
}
.panel-logo {
  width: 82px;
  height: 82px;
  border-radius: 22px;
  margin-bottom: 34px;
  box-shadow: 0 24px 40px -28px rgba(30, 80, 232, .95);
}
.panel-logo svg { width: 100%; height: 100%; display: block; }
.panel-title {
  font-family: var(--font-serif);
  font-size: 30px;
  font-style: italic;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: 24px;
}
.panel-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin-bottom: 24px;
}
.panel-grid span {
  padding: 10px 12px;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  background: rgba(244,247,251,.65);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--ink-2);
  text-align: center;
}
.hero-panel p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.85;
}
@keyframes heroPanel {
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.btn {
  border-radius: 999px;
  padding: 14px 24px;
}
.btn-primary {
  background: var(--brand);
  box-shadow: 0 14px 34px -18px rgba(30,80,232,.95);
}
.btn-primary:hover {
  background: var(--brand-dark);
  box-shadow: 0 16px 38px -18px rgba(30,80,232,1);
}
.btn-ghost:hover {
  border-color: var(--brand);
  color: var(--brand);
}

section {
  padding-block: clamp(72px, 11vh, 124px);
}
.section-head {
  margin-bottom: 48px;
}
.section-title {
  letter-spacing: -0.035em;
  font-weight: 600;
}
.section-desc {
  color: var(--muted);
}

#services {
  background:
    linear-gradient(180deg, transparent, rgba(244,247,251,.82) 22%, rgba(244,247,251,.82) 78%, transparent);
}
.services-grid {
  gap: 14px;
  background: transparent;
  border: 0;
  border-radius: 0;
  overflow: visible;
}
.service {
  min-height: 300px;
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 34px;
  box-shadow: 0 18px 60px -50px rgba(11,18,32,.55);
  overflow: hidden;
}
.service:hover {
  transform: translateY(-3px);
  border-color: rgba(30, 80, 232, .28);
  box-shadow: 0 24px 70px -48px rgba(30,80,232,.55);
}
.service-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}
.service-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line-2);
  border-radius: 14px;
  background: var(--surface);
  color: var(--brand);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 20px;
  line-height: 1;
}
.service h3 {
  font-size: 23px;
}
.service p {
  font-size: 15px;
}
.service ul li {
  background: #fff;
}

.company-table {
  max-width: 920px;
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
  border-radius: 22px;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  box-shadow: 0 18px 60px -52px rgba(11,18,32,.45);
}
.company-table tr:last-child { border-bottom: 0; }
.company-table th,
.company-table td {
  padding: 19px 24px;
}
.company-table th {
  padding-top: 23px;
  background: rgba(244,247,251,.55);
}

.contact-block {
  padding: clamp(28px, 5vw, 46px);
  border: 1px solid var(--line);
  border-radius: 26px;
  background: linear-gradient(135deg, #fff, rgba(244,247,251,.78));
  box-shadow: 0 20px 70px -55px rgba(11,18,32,.5);
}
.contact-lead {
  margin: 0;
  font-size: clamp(18px, 2.2vw, 26px);
  line-height: 1.6;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.email-block {
  border-radius: 18px;
}
.email-block:hover {
  box-shadow: 0 18px 44px -34px rgba(30,80,232,.95);
}

footer {
  background: rgba(255,255,255,.55);
}

@media (max-width: 880px) {
  .hero-panel { max-width: 520px; }
}
@media (max-width: 640px) {
  .hero { padding-block: 70px 56px; }
  .hero-title { font-size: clamp(38px, 13vw, 56px); }
  .hero-lead { line-height: 1.9; }
  .hero-panel { padding: 24px; border-radius: 22px; }
  .panel-logo { width: 68px; height: 68px; margin-bottom: 26px; }
  .panel-title { font-size: 26px; }
  .services-grid { gap: 12px; }
  .service { padding: 28px 24px; }
  .company-table th, .company-table td { padding-left: 18px; padding-right: 18px; }
  .email-block { width: 100%; }
  .email-block .addr { font-size: 15px; overflow-wrap: anywhere; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-panel { animation: none !important; opacity: 1; transform: none; }
}