/* =====================================================================
   Exponential Future Consultancy (ExpFC)
   Design system: "Blueprint to Horizon"
   Mobile-first, responsive, bilingual (EN / JA)
   ===================================================================== */

/* ---------- Design tokens ---------- */
:root {
  --ink: #0E1116;
  --graphite: #2A2F37;
  --slate: #667085;
  --slate-2: #8A93A3;
  --line: #E3E7EC;
  --line-strong: #CDD3DB;
  --paper: #FAFBFC;
  --paper-2: #F3F5F8;
  --white: #FFFFFF;

  --accent: #2563EB;
  --accent-strong: #1D4ED8;
  --accent-soft: #EAF1FE;
  --accent-tint: #F5F8FF;

  --navy: #0B1220;
  --navy-2: #111B31;
  --navy-line: rgba(120, 160, 255, 0.16);
  --navy-line-soft: rgba(120, 160, 255, 0.08);
  --on-navy: #EAF0FA;
  --on-navy-muted: #A7B3C9;

  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

  --maxw: 1180px;
  --maxw-narrow: 820px;
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 20px;

  --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.04), 0 1px 3px rgba(16, 24, 40, 0.06);
  --shadow-md: 0 6px 24px rgba(16, 24, 40, 0.08);
  --shadow-lg: 0 20px 48px rgba(16, 24, 40, 0.12);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* Japanese language overrides — per-glyph fallback keeps brand words in Space Grotesk/Inter */
html[lang="ja"] {
  --font-display: "Space Grotesk", "Zen Kaku Gothic New", "Noto Sans JP", system-ui, sans-serif;
  --font-body: "Inter", "Noto Sans JP", system-ui, sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font-body);
  color: var(--graphite);
  background: var(--white);
  line-height: 1.7;
  font-size: 1.0625rem;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
html[lang="ja"] body { line-height: 1.85; }

img, svg { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration: none; transition: color 0.2s var(--ease); }
a:hover { color: var(--accent-strong); }
ul { list-style: none; padding: 0; }
button { font-family: inherit; cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 22px; }
.section { padding-block: clamp(3.5rem, 8vw, 6.5rem); }
.section--tight { padding-block: clamp(2.75rem, 6vw, 4.5rem); }
.section--paper { background: var(--paper); }
.section--paper2 { background: var(--paper-2); }
.narrow { max-width: var(--maxw-narrow); }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { font-family: var(--font-display); color: var(--ink); line-height: 1.12; font-weight: 600; letter-spacing: -0.02em; }
html[lang="ja"] h1, html[lang="ja"] h2, html[lang="ja"] h3 { line-height: 1.32; letter-spacing: 0; }

h1 { font-size: clamp(2.15rem, 5.2vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.6vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.2vw, 1.5rem); letter-spacing: -0.01em; }
p { color: var(--slate); }
.lead { font-size: clamp(1.075rem, 1.6vw, 1.3rem); color: var(--graphite); line-height: 1.6; }
strong { color: var(--ink); font-weight: 600; }

.kicker {
  display: inline-flex; align-items: center; gap: 0.55em;
  font-family: var(--font-display);
  font-size: 0.78rem; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--accent);
}
html[lang="ja"] .kicker { letter-spacing: 0.1em; }
.kicker::before { content: ""; width: 22px; height: 1.5px; background: var(--accent); opacity: 0.75; }
.kicker--light { color: #7AA7FF; }
.kicker--light::before { background: #7AA7FF; }

.section-head { max-width: 760px; margin-bottom: clamp(2rem, 4vw, 3rem); }
.section-head p { margin-top: 1rem; font-size: 1.1rem; }
.section-head--center { margin-inline: auto; text-align: center; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.55em;
  font-family: var(--font-display); font-weight: 500; font-size: 0.98rem;
  padding: 0.92em 1.6em; border-radius: 999px; border: 1.5px solid transparent;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
  white-space: nowrap; letter-spacing: 0.01em;
}
.btn:active { transform: translateY(1px); }
.btn .arw { transition: transform 0.25s var(--ease); }
.btn:hover .arw { transform: translateX(4px); }

.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); color: #fff; }

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

.btn-on-dark { background: #fff; color: var(--navy); border-color: #fff; }
.btn-on-dark:hover { background: transparent; color: #fff; border-color: rgba(255,255,255,0.5); }

.btn-ghost-dark { background: transparent; color: #fff; border-color: rgba(255,255,255,0.32); }
.btn-ghost-dark:hover { border-color: #fff; background: rgba(255,255,255,0.06); color: #fff; }

.btn-group { display: flex; flex-wrap: wrap; gap: 0.85rem; }

.textlink { font-family: var(--font-display); font-weight: 500; display: inline-flex; align-items: center; gap: 0.4em; }
.textlink .arw { transition: transform 0.25s var(--ease); }
.textlink:hover .arw { transform: translateX(4px); }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header.scrolled { box-shadow: 0 6px 22px rgba(16, 24, 40, 0.07); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 1.5rem; }
.brand { display: inline-flex; align-items: center; gap: 0.6rem; flex-shrink: 0; color: var(--ink); }
.logo-mark { height: 38px; width: 38px; }
.brand svg, .brand img { height: 38px; width: auto; }
.brand-name { font-family: var(--font-display); font-weight: 600; font-size: 1.18rem; color: var(--ink); letter-spacing: -0.01em; }
.brand-name span { color: var(--accent); }

.nav-links { display: none; align-items: center; gap: 2rem; }
.nav-links a {
  font-family: var(--font-display); font-weight: 500; font-size: 0.96rem; color: var(--graphite);
  position: relative; padding-block: 0.3rem;
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; background: var(--accent); border-radius: 2px;
}

.nav-right { display: flex; align-items: center; gap: 1.1rem; }

.lang-switch { display: none; align-items: center; gap: 0.15rem; font-family: var(--font-display); font-size: 0.86rem; font-weight: 500; }
.lang-switch a { color: var(--slate-2); padding: 0.2rem 0.15rem; }
.lang-switch a.is-current { color: var(--ink); }
.lang-switch a:hover { color: var(--accent); }
.lang-switch .sep { color: var(--line-strong); }

.nav-cta { display: none; }

/* Hamburger */
.hamburger {
  display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; background: transparent; border: 1px solid var(--line);
  border-radius: 10px; padding: 0 11px;
}
.hamburger span { height: 2px; width: 100%; background: var(--ink); border-radius: 2px; transition: transform 0.25s var(--ease), opacity 0.2s var(--ease); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu panel */
.mobile-menu {
  position: fixed; inset: 72px 0 auto 0; z-index: 99;
  background: #fff; border-bottom: 1px solid var(--line);
  padding: 1.25rem 22px 2rem; box-shadow: var(--shadow-lg);
  transform: translateY(-8px); opacity: 0; visibility: hidden;
  transition: transform 0.28s var(--ease), opacity 0.28s var(--ease), visibility 0.28s;
}
.mobile-menu.open { transform: translateY(0); opacity: 1; visibility: visible; }
.mobile-menu a.m-link {
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--font-display); font-weight: 500; font-size: 1.15rem; color: var(--ink);
  padding: 0.95rem 0; border-bottom: 1px solid var(--line);
}
.mobile-menu a.m-link:hover { color: var(--accent); }
.m-lang { display: flex; gap: 0.5rem; margin-top: 1.5rem; }
.m-lang a { flex: 1; text-align: center; padding: 0.75rem; border: 1px solid var(--line-strong); border-radius: 10px; font-family: var(--font-display); font-weight: 500; }
.m-lang a.is-current { background: var(--ink); color: #fff; border-color: var(--ink); }
.m-cta { margin-top: 1.25rem; }
.m-cta .btn { width: 100%; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; background: var(--navy); color: var(--on-navy); isolation: isolate; }
.hero-grid { position: absolute; inset: 0; z-index: -1; pointer-events: none; background: url("../img/grid.svg") center bottom / 135% auto no-repeat; }
.hero-glow { position: absolute; top: -10%; left: 50%; transform: translateX(-50%); width: 680px; height: 420px; background: radial-gradient(ellipse at center, rgba(37,99,235,0.22), transparent 68%); z-index: -1; pointer-events: none; }

.hero-inner { padding-block: clamp(4rem, 12vw, 8.5rem); max-width: 860px; }
.hero h1 { color: #fff; margin-top: 1.4rem; }
.hero h1 em { font-style: normal; color: #7AA7FF; }
.hero .lead { color: var(--on-navy-muted); margin-top: 1.5rem; max-width: 620px; font-size: clamp(1.075rem, 1.7vw, 1.3rem); }
.hero .btn-group { margin-top: 2.4rem; }

.hero-stats { display: flex; flex-wrap: wrap; gap: 2.25rem 3rem; margin-top: 3.25rem; padding-top: 2.25rem; border-top: 1px solid rgba(255,255,255,0.12); }
.hero-stat .num { font-family: var(--font-display); font-size: 1.75rem; font-weight: 600; color: #fff; letter-spacing: -0.01em; }
.hero-stat .lbl { font-size: 0.82rem; color: var(--on-navy-muted); text-transform: uppercase; letter-spacing: 0.11em; margin-top: 0.2rem; }
html[lang="ja"] .hero-stat .lbl { letter-spacing: 0.06em; text-transform: none; }

/* Page hero (interior) */
.page-hero { position: relative; overflow: hidden; background: var(--navy); color: var(--on-navy); isolation: isolate; }
.page-hero .hero-grid { background-size: 155% auto; opacity: 0.92; }
.page-hero-inner { padding-block: clamp(3rem, 8vw, 5rem); max-width: 820px; }
.page-hero h1 { color: #fff; margin-top: 1.1rem; font-size: clamp(2rem, 4.6vw, 3rem); }
.page-hero p { color: var(--on-navy-muted); margin-top: 1.1rem; font-size: 1.15rem; max-width: 640px; }

/* ---------- Trust strip ---------- */
.trust { background: var(--ink); color: var(--on-navy-muted); }
.trust .container { display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 2rem; padding-block: 1.15rem; justify-content: center; }
.trust .t-item { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.85rem; font-family: var(--font-display); font-weight: 500; letter-spacing: 0.02em; color: #C4CDDC; }
.trust .t-item .dot { width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 1.25rem; }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.9rem 1.75rem; transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
  height: 100%;
}
.card:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: var(--shadow-md); }
.card .num-badge {
  font-family: var(--font-display); font-size: 0.82rem; font-weight: 600; color: var(--accent);
  letter-spacing: 0.05em; display: inline-block; margin-bottom: 1rem;
}
.card .ic { width: 46px; height: 46px; border-radius: 12px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; margin-bottom: 1.25rem; }
.card .ic svg { width: 24px; height: 24px; }
.card h3 { margin-bottom: 0.6rem; }
.card p { font-size: 0.98rem; }
.card .textlink { margin-top: 1.15rem; font-size: 0.92rem; }
.card--feature { background: var(--navy); border-color: var(--navy-2); color: var(--on-navy); }
.card--feature h3 { color: #fff; }
.card--feature p { color: var(--on-navy-muted); }

/* ---------- Split / media ---------- */
.split { display: grid; grid-template-columns: 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.split--reverse .split-media { order: -1; }
.split-media { position: relative; }

/* Spotlight (org effectiveness) */
.spotlight { position: relative; overflow: hidden; background: var(--navy); color: var(--on-navy); border-radius: var(--radius-lg); padding: clamp(2rem, 5vw, 3.5rem); isolation: isolate; }
.spotlight .hero-grid { background-size: 130% auto; opacity: 0.7; }
.spotlight h2 { color: #fff; }
.spotlight p { color: var(--on-navy-muted); }
.spotlight .spot-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem 2.5rem; margin-top: 2rem; }
.spot-point { border-top: 1px solid rgba(255,255,255,0.14); padding-top: 1.1rem; }
.spot-point h4 { color: #fff; font-family: var(--font-display); font-size: 1.05rem; font-weight: 600; margin-bottom: 0.35rem; }
.spot-point p { font-size: 0.95rem; }

/* ---------- Approach steps ---------- */
.steps { display: grid; grid-template-columns: 1fr; gap: 1.1rem; counter-reset: step; }
.step { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.6rem 1.5rem 1.6rem 1.5rem; display: flex; gap: 1.15rem; align-items: flex-start; }
.step .step-n { flex-shrink: 0; width: 40px; height: 40px; border-radius: 11px; background: var(--ink); color: #fff; font-family: var(--font-display); font-weight: 600; display: grid; place-items: center; font-size: 1rem; }
.step h4 { font-family: var(--font-display); font-size: 1.12rem; font-weight: 600; color: var(--ink); margin-bottom: 0.3rem; }
.step p { font-size: 0.95rem; margin: 0; }

/* ---------- Feature list (why us) ---------- */
.features { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
.feature { display: flex; gap: 1rem; align-items: flex-start; }
.feature .fic { flex-shrink: 0; width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); }
.feature .fic svg { width: 22px; height: 22px; }
.feature h4 { font-family: var(--font-display); font-size: 1.08rem; font-weight: 600; color: var(--ink); margin-bottom: 0.3rem; }
.feature p { font-size: 0.96rem; margin: 0; }

/* ---------- Industries ---------- */
.ind-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.ind {
  display: flex; align-items: center; gap: 1rem; padding: 1.35rem 1.5rem;
  border: 1px solid var(--line); border-radius: var(--radius); background: #fff;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.ind:hover { border-color: var(--accent); background: var(--accent-tint); }
.ind .ic { width: 44px; height: 44px; border-radius: 11px; background: var(--paper-2); color: var(--ink); display: grid; place-items: center; flex-shrink: 0; }
.ind:hover .ic { background: #fff; color: var(--accent); }
.ind .ic svg { width: 23px; height: 23px; }
.ind h4 { font-family: var(--font-display); font-size: 1.05rem; font-weight: 600; color: var(--ink); }
.ind p { font-size: 0.88rem; margin: 0; }

/* ---------- Founder ---------- */
.founder { display: grid; grid-template-columns: 1fr; gap: clamp(1.75rem, 4vw, 3.25rem); align-items: center; }
.founder-photo { position: relative; }
.founder-photo .frame { position: relative; border-radius: var(--radius-lg); overflow: hidden; background: var(--navy); aspect-ratio: 4 / 5; box-shadow: var(--shadow-lg); }
.founder-photo .frame img { width: 100%; height: 100%; object-fit: cover; }
.founder-photo .badge {
  position: absolute; left: -14px; bottom: 22px; background: #fff; border: 1px solid var(--line);
  border-radius: 14px; padding: 0.85rem 1.15rem; box-shadow: var(--shadow-md); display: flex; align-items: center; gap: 0.7rem;
}
.founder-photo .badge svg { width: 30px; height: 30px; color: var(--accent); }
.founder-photo .badge .b-num { font-family: var(--font-display); font-weight: 600; color: var(--ink); font-size: 1.15rem; line-height: 1; }
.founder-photo .badge .b-lbl { font-size: 0.76rem; color: var(--slate); }
.founder-body .role { font-family: var(--font-display); color: var(--accent); font-weight: 500; letter-spacing: 0.02em; margin-bottom: 0.4rem; }
.founder-body h2 { margin-bottom: 0.4rem; }
.founder-body .credentials { font-size: 0.95rem; color: var(--slate); margin-bottom: 1.4rem; }
.founder-body .quote { font-family: var(--font-display); font-size: 1.2rem; line-height: 1.5; color: var(--ink); font-weight: 500; border-left: 3px solid var(--accent); padding-left: 1.1rem; margin: 1.4rem 0; }
.founder-quals { display: grid; gap: 0.85rem; margin-top: 1.5rem; }
.founder-qual { display: flex; gap: 0.7rem; align-items: flex-start; font-size: 0.98rem; color: var(--graphite); }
.founder-qual svg { flex-shrink: 0; width: 20px; height: 20px; color: var(--accent); margin-top: 3px; }

/* ---------- CTA band ---------- */
.cta-band { position: relative; overflow: hidden; background: var(--navy); color: #fff; isolation: isolate; }
.cta-band .hero-grid { background-size: 145% auto; opacity: 0.6; }
.cta-inner { text-align: center; max-width: 720px; margin-inline: auto; padding-block: clamp(3.5rem, 8vw, 5.5rem); }
.cta-inner h2 { color: #fff; }
.cta-inner h2 em { font-style: normal; color: #7AA7FF; }
.cta-inner p { color: var(--on-navy-muted); margin-top: 1rem; font-size: 1.15rem; }
.cta-contacts { display: flex; flex-wrap: wrap; justify-content: center; gap: 1rem 2.5rem; margin-top: 2.25rem; }
.cta-contacts a { display: inline-flex; align-items: center; gap: 0.6rem; color: #fff; font-family: var(--font-display); font-weight: 500; font-size: 1.05rem; }
.cta-contacts a svg { width: 20px; height: 20px; color: #7AA7FF; }
.cta-contacts a:hover { color: #7AA7FF; }
.cta-inner .btn-group { justify-content: center; margin-top: 2.25rem; }

/* ---------- Contact page ---------- */
.contact-cards { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }
.contact-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 2rem 1.85rem; }
.contact-card .ic { width: 52px; height: 52px; border-radius: 13px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; margin-bottom: 1.25rem; }
.contact-card .ic svg { width: 26px; height: 26px; }
.contact-card .label { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--slate-2); font-family: var(--font-display); font-weight: 500; }
html[lang="ja"] .contact-card .label { letter-spacing: 0.05em; text-transform: none; }
.contact-card .value { font-family: var(--font-display); font-size: 1.3rem; font-weight: 600; color: var(--ink); margin-top: 0.35rem; word-break: break-word; }
.contact-card .value:hover { color: var(--accent); }
.contact-card p { margin-top: 0.6rem; font-size: 0.95rem; }

.contact-note { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.75rem; }
.contact-note h4 { font-family: var(--font-display); color: var(--ink); font-size: 1.1rem; margin-bottom: 0.75rem; }
.contact-note ul { display: grid; gap: 0.55rem; }
.contact-note li { display: flex; gap: 0.6rem; align-items: flex-start; font-size: 0.98rem; color: var(--graphite); }
.contact-note li svg { flex-shrink: 0; width: 18px; height: 18px; color: var(--accent); margin-top: 4px; }

/* ---------- Prose blocks ---------- */
.prose > * + * { margin-top: 1.15rem; }
.prose h3 { margin-top: 2.25rem; }
.pill-row { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.5rem; }
.pill { font-family: var(--font-display); font-size: 0.85rem; font-weight: 500; color: var(--graphite); background: #fff; border: 1px solid var(--line-strong); border-radius: 999px; padding: 0.5rem 1.05rem; }
.pill:hover { border-color: var(--accent); color: var(--accent); }

/* Value props inline list */
.checks { display: grid; gap: 0.8rem; margin-top: 1.5rem; }
.checks li { display: flex; gap: 0.7rem; align-items: flex-start; color: var(--graphite); }
.checks li svg { flex-shrink: 0; width: 21px; height: 21px; color: var(--accent); margin-top: 3px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: var(--on-navy-muted); padding-block: clamp(3rem, 6vw, 4.5rem) 2rem; }
.footer-top { display: grid; grid-template-columns: 1fr; gap: 2.5rem; padding-bottom: 2.5rem; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-brand .brand-name { color: #fff; }
.footer-brand p { color: var(--on-navy-muted); margin-top: 1rem; font-size: 0.95rem; max-width: 340px; }
.footer-brand .brand svg .mark-ring, .footer-brand .brand svg .mark-tri { stroke: #fff; }
.footer-col h5 { font-family: var(--font-display); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--slate-2); margin-bottom: 1.1rem; font-weight: 500; }
html[lang="ja"] .footer-col h5 { letter-spacing: 0.05em; text-transform: none; }
.footer-col ul { display: grid; gap: 0.7rem; }
.footer-col a, .footer-col span.fi { color: var(--on-navy-muted); font-size: 0.95rem; }
.footer-col a:hover { color: #fff; }
.footer-bottom { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center; padding-top: 2rem; }
.footer-bottom p { color: var(--slate-2); font-size: 0.85rem; }
.footer-lang { display: flex; gap: 0.4rem; font-family: var(--font-display); font-size: 0.85rem; }
.footer-lang a { color: var(--slate-2); }
.footer-lang a.is-current { color: #fff; }
.footer-lang a:hover { color: var(--accent); }
.footer-lang .sep { color: rgba(255,255,255,0.2); }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.eyebrow-block { margin-bottom: 3rem; }
.divider { height: 1px; background: var(--line); border: 0; margin-block: clamp(2.5rem, 5vw, 4rem); }

/* =====================================================================
   Responsive breakpoints
   ===================================================================== */
@media (min-width: 620px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .ind-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-cards { grid-template-columns: repeat(2, 1fr); }
  .spotlight .spot-grid { grid-template-columns: repeat(2, 1fr); }
  .founder-quals { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  .container { padding-inline: 32px; }
  .nav-links { display: flex; }
  .lang-switch { display: flex; }
  .nav-cta { display: inline-flex; }
  .hamburger { display: none; }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
  .ind-grid { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(5, 1fr); }
  .step { flex-direction: column; }
  .features { grid-template-columns: repeat(2, 1fr); gap: 2rem 2.5rem; }
  .split { grid-template-columns: 1fr 1fr; }
  .split--wide-media { grid-template-columns: 1.1fr 0.9fr; }
  .founder { grid-template-columns: 0.85fr 1.15fr; }
  .footer-top { grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 3rem; }
  .contact-cards { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1100px) {
  .grid-services { grid-template-columns: repeat(3, 1fr); }
}

/* JP fine-tuning: slightly smaller display sizes for dense kanji headlines */
html[lang="ja"] h1 { font-size: clamp(1.9rem, 4.4vw, 3rem); }
html[lang="ja"] .hero h1 { line-height: 1.28; }