/* ===== KADO INC – ULTRA PREMIUM V2 ===== */
:root {
  --bg: #09090a;
  --bg2: #111213;
  --panel: rgba(255,255,255,0.045);
  --panel-hover: rgba(255,255,255,0.07);
  --text: #f0ebe0;
  --muted: #b8b0a2;
  --dim: #7a746b;
  --gold: #c9a96e;
  --gold-lt: #e2c98a;
  --gold-dim: rgba(201,169,110,0.22);
  --line: rgba(201,169,110,0.16);
  --white-line: rgba(255,255,255,0.07);
  --max: 1260px;
  --r: 20px;
  --shadow: 0 28px 80px rgba(0,0,0,0.55);
}

/* RESET & BASE */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: "Noto Sans JP","Hiragino Sans","Yu Gothic",sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  letter-spacing: 0.025em;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* UTILITIES */
.container { width: min(var(--max), calc(100% - 56px)); margin: 0 auto; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  color: var(--gold); font-size: 11px; letter-spacing: .26em;
  text-transform: uppercase; font-weight: 500;
}
.eyebrow::before {
  content: ""; width: 44px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold));
  flex-shrink: 0;
}
.gold-rule { width: 72px; height: 1px; background: linear-gradient(90deg, var(--gold), transparent); margin: 22px 0; }

/* ─── NAVIGATION ─── */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  backdrop-filter: blur(22px) saturate(1.2);
  background: rgba(9,9,10,0.78);
  border-bottom: 1px solid var(--white-line);
  transition: background .3s;
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 80px; gap: 20px;
}
.brand { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.brand-mark {
  width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid rgba(201,169,110,0.45);
  display: grid; place-items: center;
  font-family: Georgia,serif; font-size: 20px;
  color: var(--gold-lt);
  background: radial-gradient(circle at 35% 30%, rgba(255,255,255,0.1), rgba(0,0,0,0.3));
}
.brand-text small { display: block; color: var(--muted); font-size: 11px; letter-spacing: .18em; text-transform: uppercase; }
.brand-text strong { font-size: 16px; font-weight: 600; letter-spacing: .02em; }

.primary-nav { display: flex; align-items: center; gap: 6px; }
.primary-nav a {
  color: var(--muted); font-size: 13.5px; padding: 8px 14px;
  border-radius: 8px; transition: color .2s, background .2s;
  white-space: nowrap;
}
.primary-nav a:hover { color: var(--gold-lt); background: rgba(201,169,110,0.08); }
.primary-nav a.active { color: var(--gold-lt); }

/* Dropdown */
.nav-dropdown { position: relative; }
.nav-dropdown > a { display: flex; align-items: center; gap: 5px; }
.nav-dropdown > a::after { content: "▾"; font-size: 10px; color: var(--gold); }
.dropdown-menu {
  display: none; position: absolute; top: calc(100% + 8px); left: 0;
  background: rgba(18,18,20,0.97); border: 1px solid var(--white-line);
  border-radius: 14px; min-width: 230px; padding: 10px;
  box-shadow: var(--shadow); backdrop-filter: blur(18px);
}
.dropdown-menu a {
  display: flex; flex-direction: column; padding: 12px 16px;
  border-radius: 10px; transition: background .2s;
}
.dropdown-menu a:hover { background: rgba(201,169,110,0.08); }
.dropdown-menu a small { color: var(--gold); font-size: 10px; letter-spacing: .18em; text-transform: uppercase; display: block; margin-bottom: 3px; }
.dropdown-menu a span { font-size: 14px; color: var(--text); }
.nav-dropdown:hover .dropdown-menu { display: block; }

.nav-cta {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 11px 22px; border-radius: 100px; font-weight: 600; font-size: 13px;
  background: linear-gradient(135deg, var(--gold-lt), #b8922d);
  color: #13100a; white-space: nowrap; flex-shrink: 0;
  box-shadow: 0 6px 24px rgba(201,169,110,0.28);
  transition: transform .2s, box-shadow .2s;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 10px 32px rgba(201,169,110,0.38); }

/* ─── HERO (INDEX) ─── */
.hero-full {
  position: relative; min-height: 100vh;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding-bottom: 80px; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background-image: url('images/shinjuku-night.jpg');
  background-size: cover; background-position: center;
  transform: scale(1.04);
  animation: heroZoom 20s ease-in-out infinite alternate;
}
@keyframes heroZoom { from { transform: scale(1.04); } to { transform: scale(1.08); } }
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(9,9,10,0.28) 0%, rgba(9,9,10,0.15) 30%, rgba(9,9,10,0.65) 65%, rgba(9,9,10,0.97) 100%),
    linear-gradient(90deg, rgba(9,9,10,0.5) 0%, transparent 60%);
}
.hero-content { position: relative; z-index: 2; }
.hero-content .eyebrow { margin-bottom: 28px; }
.hero-tagline {
  font-family: Georgia,"Times New Roman",serif;
  font-size: clamp(50px,7.5vw,100px);
  line-height: 1.02; font-weight: 400; letter-spacing: -0.01em;
  margin-bottom: 28px; max-width: 900px;
}
.hero-tagline em { font-style: normal; color: var(--gold); }
.hero-sub {
  color: var(--muted); font-size: clamp(16px,1.6vw,20px);
  max-width: 600px; margin-bottom: 48px; line-height: 1.75;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 15px 32px; border-radius: 100px; font-weight: 600; font-size: 15px;
  background: linear-gradient(135deg, var(--gold-lt), #b8922d);
  color: #13100a;
  box-shadow: 0 8px 30px rgba(201,169,110,0.30);
  transition: transform .22s, box-shadow .22s;
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 14px 40px rgba(201,169,110,0.40); }
.btn-ghost {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 30px; border-radius: 100px; font-weight: 500; font-size: 15px;
  border: 1px solid rgba(201,169,110,0.35);
  color: var(--text); background: rgba(255,255,255,0.04);
  transition: border-color .22s, background .22s;
}
.btn-ghost:hover { border-color: var(--gold); background: rgba(201,169,110,0.06); }

.hero-scroll {
  position: absolute; bottom: 36px; right: 48px; z-index: 3;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  color: var(--dim); font-size: 10px; letter-spacing: .18em; text-transform: uppercase;
}
.scroll-line {
  width: 1px; height: 64px;
  background: linear-gradient(180deg, var(--gold), transparent);
  animation: scrollDrop 2s ease-in-out infinite;
}
@keyframes scrollDrop {
  0%,100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.55); opacity: 0.4; }
}

/* ─── SECTION BASE ─── */
section { padding: 100px 0; }
.section-label { margin-bottom: 64px; }
.section-label h2 {
  font-family: Georgia,serif; font-weight: 400;
  font-size: clamp(34px,4.5vw,56px); margin-top: 16px; margin-bottom: 16px;
  line-height: 1.15; letter-spacing: -0.01em;
}
.section-label p { color: var(--muted); max-width: 720px; font-size: 17px; }

/* ─── IMAGE FEATURE BAND ─── */
.img-band {
  width: 100vw; height: 480px; overflow: hidden;
  position: relative; left: 50%; transform: translateX(-50%);
}
.img-band img { width: 100%; height: 100%; object-fit: cover; }
.img-band::before {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(90deg, rgba(9,9,10,0.7) 0%, transparent 40%, transparent 60%, rgba(9,9,10,0.7) 100%);
}

/* ─── SERVICE FEATURE SECTIONS (INDEX) ─── */
.service-feature {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  min-height: 560px; border-top: 1px solid var(--white-line);
}
.service-feature.reverse { direction: rtl; }
.service-feature.reverse > * { direction: ltr; }
.sf-img {
  position: relative; overflow: hidden;
  min-height: 460px;
}
.sf-img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 7s ease;
}
.service-feature:hover .sf-img img { transform: scale(1.04); }
.sf-img::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(9,9,10,0.45), transparent 65%);
}
.sf-copy {
  padding: 72px 64px; display: flex; flex-direction: column; justify-content: center;
  background: var(--bg2);
}
.sf-copy .service-no {
  color: var(--gold); font-size: 11px; letter-spacing: .28em; text-transform: uppercase;
  margin-bottom: 20px; font-weight: 500;
}
.sf-copy h3 {
  font-family: Georgia,serif; font-size: clamp(28px,3vw,40px);
  font-weight: 400; margin-bottom: 16px; line-height: 1.2;
}
.sf-copy .sf-slogan {
  color: var(--gold-lt); font-size: 15px; font-style: italic;
  margin-bottom: 28px; border-left: 2px solid var(--gold-dim);
  padding-left: 16px; line-height: 1.6;
}
.sf-copy p { color: var(--muted); font-size: 15.5px; margin-bottom: 28px; line-height: 1.85; }
.sf-list {
  list-style: none; margin-bottom: 36px;
}
.sf-list li {
  padding: 10px 0; border-bottom: 1px solid var(--white-line);
  font-size: 14.5px; color: var(--muted); display: flex; align-items: center; gap: 10px;
}
.sf-list li::before { content: "—"; color: var(--gold); flex-shrink: 0; }

/* ─── STRENGTHS ─── */
.strengths-section { background: var(--bg2); }
.strength-grid {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 1px;
  border: 1px solid var(--white-line); border-radius: var(--r); overflow: hidden;
}
.strength-card {
  padding: 48px 36px;
  background: var(--bg2);
  border-right: 1px solid var(--white-line);
  transition: background .3s;
}
.strength-card:last-child { border-right: none; }
.strength-card:hover { background: rgba(255,255,255,0.03); }
.strength-no {
  font-family: Georgia,serif; font-size: 52px; font-weight: 400;
  color: rgba(201,169,110,0.15); line-height: 1; margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.strength-card h3 { font-size: 17px; margin-bottom: 14px; line-height: 1.5; }
.strength-card p { color: var(--muted); font-size: 14.5px; line-height: 1.8; }

/* ─── PHOTO MOSAIC ─── */
.mosaic {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  grid-template-rows: 260px 260px;
  gap: 4px;
}
.mosaic-item { overflow: hidden; position: relative; }
.mosaic-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 6s ease; }
.mosaic-item:hover img { transform: scale(1.05); }
.mosaic-item.tall { grid-row: span 2; }
.mosaic-item::after {
  content: ""; position: absolute; inset: 0;
  background: rgba(9,9,10,0.15);
  transition: background .3s;
}
.mosaic-item:hover::after { background: rgba(9,9,10,0.05); }

/* ─── PROCESS (INDEX) ─── */
.process-row {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 0;
  border-top: 1px solid var(--white-line);
}
.process-item {
  padding: 40px 36px; border-right: 1px solid var(--white-line);
  transition: background .25s;
}
.process-item:last-child { border-right: none; }
.process-item:hover { background: var(--panel-hover); }
.process-step-no {
  font-family: Georgia,serif; font-size: 14px; color: var(--gold);
  letter-spacing: .14em; margin-bottom: 20px;
}
.process-item h3 { font-size: 20px; margin-bottom: 12px; }
.process-item p { color: var(--muted); font-size: 14.5px; }

/* ─── FULL-WIDTH CTA ─── */
.cta-section {
  position: relative; overflow: hidden;
  padding: 120px 0;
  text-align: center;
}
.cta-bg {
  position: absolute; inset: 0;
  background-image: url('images/aerial-night.jpg');
  background-size: cover; background-position: center;
}
.cta-bg::after {
  content: ""; position: absolute; inset: 0;
  background: rgba(9,9,10,0.78);
}
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 {
  font-family: Georgia,serif; font-weight: 400;
  font-size: clamp(36px,5vw,64px); line-height: 1.15; margin-bottom: 20px;
}
.cta-section p { color: var(--muted); font-size: 18px; margin-bottom: 48px; }
.cta-actions { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }

/* ─── FOOTER ─── */
.site-footer {
  padding: 72px 0 40px;
  border-top: 1px solid var(--white-line);
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px; margin-bottom: 56px;
}
.footer-brand .brand-mark { margin-bottom: 20px; }
.footer-brand p { color: var(--muted); font-size: 14px; max-width: 280px; line-height: 1.75; }
.footer-col h4 { font-size: 12px; letter-spacing: .18em; color: var(--gold); text-transform: uppercase; margin-bottom: 20px; }
.footer-col a { display: block; color: var(--muted); font-size: 14px; padding: 5px 0; transition: color .2s; }
.footer-col a:hover { color: var(--gold-lt); }
.footer-bottom {
  padding-top: 28px; border-top: 1px solid var(--white-line);
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; flex-wrap: wrap;
}
.footer-bottom p { color: var(--dim); font-size: 12.5px; }

/* ─── SUB-PAGE HERO ─── */
.subhero {
  position: relative; min-height: 520px;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding-bottom: 80px; padding-top: 120px; overflow: hidden;
}
.subhero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
}
.subhero-bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(9,9,10,0.35) 0%, rgba(9,9,10,0.8) 70%, rgba(9,9,10,1) 100%),
    linear-gradient(90deg, rgba(9,9,10,0.55) 0%, transparent 50%);
}
.subhero-content { position: relative; z-index: 2; }
.subhero-content h1 {
  font-family: Georgia,serif; font-weight: 400;
  font-size: clamp(40px,6vw,80px); line-height: 1.08;
  margin: 20px 0 22px; letter-spacing: -0.01em;
}
.subhero-content .hero-sub { max-width: 580px; }

/* ─── CONTENT PANELS ─── */
.panel {
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.025));
  border: 1px solid var(--white-line);
  border-radius: var(--r);
}
.content-grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.content-grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; }
.card { padding: 36px; }
.card .card-icon {
  width: 48px; height: 48px; border-radius: 14px;
  border: 1px solid var(--gold-dim); display: grid; place-items: center;
  margin-bottom: 22px;
  background: rgba(201,169,110,0.06);
}
.card-icon svg { width: 22px; height: 22px; stroke: var(--gold); fill: none; stroke-width: 1.5; }
.card h3 { font-size: 20px; margin-bottom: 12px; }
.card p { color: var(--muted); font-size: 14.5px; line-height: 1.8; }
.card ul { list-style: none; margin-top: 16px; }
.card ul li {
  padding: 9px 0; border-bottom: 1px solid var(--white-line);
  font-size: 14px; color: var(--muted); display: flex; align-items: center; gap: 10px;
}
.card ul li::before { content: "→"; color: var(--gold); font-size: 13px; }
.card .tagline {
  margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line);
  font-size: 14px; color: var(--gold-lt); font-weight: 600; font-style: italic;
}

/* ─── STEP FLOW ─── */
.step-flow { display: grid; grid-template-columns: repeat(4,1fr); gap: 0; position: relative; }
.step-flow::before {
  content: ""; position: absolute; top: 28px; left: 12.5%; right: 12.5%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  z-index: 0;
}
.step-item { padding: 0 24px; text-align: center; }
.step-num {
  width: 56px; height: 56px; border-radius: 50%;
  border: 1px solid var(--gold-dim);
  background: var(--bg); display: grid; place-items: center;
  font-family: Georgia,serif; font-size: 20px; color: var(--gold);
  margin: 0 auto 24px; position: relative; z-index: 1;
}
.step-item h3 { font-size: 17px; margin-bottom: 10px; }
.step-item p { color: var(--muted); font-size: 14px; }

/* ─── IMAGE + TEXT SPLIT ─── */
.split-section { display: grid; grid-template-columns: 1fr 1fr; gap: 0; min-height: 480px; }
.split-img { overflow: hidden; }
.split-img img { width: 100%; height: 100%; object-fit: cover; }
.split-copy {
  padding: 72px 64px; display: flex; flex-direction: column; justify-content: center;
  background: var(--bg2);
}
.split-copy h2 {
  font-family: Georgia,serif; font-size: clamp(28px,3.5vw,44px);
  font-weight: 400; margin-bottom: 20px; line-height: 1.2;
}
.split-copy p { color: var(--muted); font-size: 15.5px; margin-bottom: 20px; line-height: 1.85; }

/* ─── KV TABLE ─── */
.kv-table { width: 100%; }
.kv-row {
  display: flex; gap: 24px; padding: 16px 0;
  border-bottom: 1px solid var(--white-line);
}
.kv-label { color: var(--muted); font-size: 13px; min-width: 130px; flex-shrink: 0; }
.kv-value { font-size: 15px; }

/* ─── FAQ ─── */
.faq-item {
  border-bottom: 1px solid var(--white-line); padding: 24px 0;
}
.faq-q { font-size: 16px; margin-bottom: 12px; display: flex; gap: 14px; align-items: flex-start; }
.faq-q::before { content: "Q"; color: var(--gold); font-family: Georgia,serif; font-size: 18px; flex-shrink: 0; }
.faq-a { color: var(--muted); padding-left: 30px; font-size: 15px; line-height: 1.8; }

/* ─── PLATFORM TAGS ─── */
.platform-list { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }
.platform-tag {
  padding: 7px 18px; border-radius: 100px;
  border: 1px solid var(--gold-dim); color: var(--gold-lt);
  font-size: 13px; letter-spacing: .08em;
}

/* ─── CONTACT FORM SECTION ─── */
.contact-section { background: var(--bg2); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.contact-info h2 {
  font-family: Georgia,serif; font-weight: 400;
  font-size: clamp(28px,3.5vw,44px); margin-bottom: 20px; line-height: 1.2;
}
.contact-info p { color: var(--muted); margin-bottom: 36px; font-size: 15.5px; line-height: 1.85; }
.contact-detail { display: flex; flex-direction: column; gap: 16px; }
.contact-item {
  display: flex; gap: 16px; align-items: center;
  padding: 18px 24px; background: var(--panel); border-radius: 14px;
  border: 1px solid var(--white-line);
}
.contact-item-icon {
  width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center;
  background: rgba(201,169,110,0.08); border: 1px solid var(--gold-dim); flex-shrink: 0;
}
.contact-item-icon svg { width: 18px; height: 18px; stroke: var(--gold); fill: none; stroke-width: 1.5; }
.contact-item-label { font-size: 11px; color: var(--dim); letter-spacing: .14em; text-transform: uppercase; }
.contact-item-value { font-size: 15px; }
.contact-form-box { padding: 40px; border-radius: var(--r); }
.form-row { margin-bottom: 20px; }
.form-row label { display: block; font-size: 12px; color: var(--gold); letter-spacing: .12em; text-transform: uppercase; margin-bottom: 8px; }
.form-row select,
.form-row input,
.form-row textarea {
  width: 100%; padding: 14px 18px;
  background: rgba(255,255,255,0.04); border: 1px solid var(--white-line);
  border-radius: 12px; color: var(--text); font-size: 15px;
  font-family: inherit; outline: none; transition: border-color .2s;
}
.form-row select:focus,
.form-row input:focus,
.form-row textarea:focus { border-color: rgba(201,169,110,0.4); }
.form-row select option { background: #111; }
.form-row textarea { resize: vertical; min-height: 130px; }

/* ─── MOBILE NAV ─── */
.hamburger {
  display: none; flex-direction: column; gap: 5px; cursor: pointer;
  background: none; border: none; padding: 8px;
}
.hamburger span { display: block; width: 24px; height: 1.5px; background: var(--text); }
.mobile-nav {
  display: none; position: fixed; inset: 0; z-index: 200;
  background: rgba(9,9,10,0.97); backdrop-filter: blur(20px);
  flex-direction: column; justify-content: center; align-items: center; gap: 8px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a { font-size: 22px; padding: 14px 40px; color: var(--muted); border-radius: 12px; }
.mobile-nav a:hover { color: var(--gold-lt); background: rgba(201,169,110,0.07); }
.mobile-close {
  position: absolute; top: 28px; right: 28px; background: none; border: none;
  color: var(--muted); font-size: 28px; cursor: pointer;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 1100px) {
  .strength-grid { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .service-feature { grid-template-columns: 1fr; min-height: auto; }
  .service-feature.reverse { direction: ltr; }
  .sf-img { min-height: 320px; }
  .sf-copy { padding: 52px 40px; }
}
@media (max-width: 840px) {
  .content-grid-3 { grid-template-columns: 1fr; }
  .content-grid-2 { grid-template-columns: 1fr; }
  .process-row { grid-template-columns: 1fr 1fr; }
  .step-flow { grid-template-columns: 1fr 1fr; }
  .step-flow::before { display: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .split-section { grid-template-columns: 1fr; }
  .split-copy { padding: 48px 36px; }
  .mosaic { grid-template-columns: 1fr 1fr; grid-template-rows: auto; }
  .mosaic-item.tall { grid-row: span 1; }
  .primary-nav { display: none; }
  .hamburger { display: flex; }
  .hero-scroll { display: none; }
}
@media (max-width: 560px) {
  .container { width: calc(100% - 36px); }
  .strength-grid { grid-template-columns: 1fr; }
  .process-row { grid-template-columns: 1fr; }
  .step-flow { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-tagline { font-size: 40px; }
  .sf-copy { padding: 36px 24px; }
}