/* ============================================
   UNTITLED Inc. — Corporate Site
   Design tokens & global styles
   ============================================ */

:root {
  --bg: #FFFFFF;
  --surface: #FAFAFA;
  --ink: #0A0A0A;
  --ink-sub: #6B6B6B;
  --border: #E8E8E8;
  --invert: #FFFFFF;

  --font-en: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-jp: 'Noto Sans JP', '游ゴシック', YuGothic, sans-serif;

  --max: 1280px;
  --content: 1120px;
  --pad-section: 160px;
  --pad-section-sp: 96px;
  --pad-x: 32px;
  --pad-x-sp: 20px;

  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --dur: 400ms;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-jp);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.8;
  font-size: 16px;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
ul { list-style: none; }

.en { font-family: var(--font-en); letter-spacing: -0.02em; }

.container {
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.section { padding: var(--pad-section) 0; }

@media (max-width: 768px) {
  .section { padding: var(--pad-section-sp) 0; }
  .container { padding: 0 var(--pad-x-sp); }
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 24px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255,255,255,0);
  transition: background 300ms ease, border-color 300ms ease;
  border-bottom: 1px solid transparent;
}

.header.is-scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--border);
}

.logo {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.04em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.logo-mark {
  height: 26px;
  width: auto;
  display: block;
}

/* Hero logo mark */
.hero-mark {
  height: 96px;
  width: auto;
  margin-bottom: 40px;
  display: block;
}
@media (max-width: 768px) {
  .hero-mark { height: 64px; margin-bottom: 28px; }
}

.nav {
  display: flex;
  gap: 40px;
  align-items: center;
}

.nav a {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  position: relative;
  text-transform: uppercase;
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--ink);
  transition: width 200ms var(--ease);
}

.nav a:hover::after { width: 100%; }

.nav-cta {
  padding: 10px 20px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: 12px !important;
  letter-spacing: 0.06em !important;
  transition: background 200ms ease, color 200ms ease;
}
.nav-cta:hover { background: var(--ink); color: var(--invert); }
.nav-cta::after { display: none !important; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 32px;
  height: 24px;
  position: relative;
  cursor: pointer;
  z-index: 110;
}
.nav-toggle span {
  position: absolute;
  left: 0; right: 0;
  height: 1.5px;
  background: var(--ink);
  transition: transform 300ms var(--ease), top 300ms var(--ease);
}
.nav-toggle span:nth-child(1) { top: 6px; }
.nav-toggle span:nth-child(2) { top: 16px; }
.nav-toggle.is-open span:nth-child(1) { top: 11px; transform: rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { top: 11px; transform: rotate(-45deg); }

@media (max-width: 768px) {
  .header { padding: 16px 20px; }
  .nav-toggle { display: block; }
  .nav {
    position: fixed;
    inset: 0;
    background: var(--bg);
    flex-direction: column;
    justify-content: center;
    gap: 32px;
    transform: translateY(-100%);
    transition: transform 400ms var(--ease);
  }
  .nav.is-open { transform: translateY(0); }
  .nav a { font-size: 18px; }
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  position: relative;
}

.hero-inner { width: 100%; }

.hero-tag {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-sub);
  margin-bottom: 40px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-tag::before {
  content: '';
  display: inline-block;
  width: 32px;
  height: 1px;
  background: var(--ink-sub);
}

.hero-title {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: clamp(56px, 11vw, 144px);
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin-bottom: 32px;
}

.hero-sub {
  font-size: clamp(16px, 1.6vw, 22px);
  font-weight: 500;
  color: var(--ink-sub);
  max-width: 540px;
  line-height: 1.7;
}

.hero-meta {
  position: absolute;
  bottom: 40px;
  right: var(--pad-x);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-sub);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: var(--pad-x);
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-sub);
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-scroll::after {
  content: '';
  width: 48px;
  height: 1px;
  background: var(--ink-sub);
  transform-origin: left;
  animation: scroll-line 2.4s ease-in-out infinite;
}

@keyframes scroll-line {
  0%, 100% { transform: scaleX(0.3); }
  50% { transform: scaleX(1); }
}

@media (max-width: 768px) {
  .hero { min-height: 90vh; padding: 120px 0 80px; }
  .hero-meta, .hero-scroll { display: none; }
}

/* ===== Section heading ===== */
.section-label {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-sub);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-label::before {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--ink-sub);
}

.section-title {
  font-size: clamp(32px, 5vw, 64px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
}

.section-title .en {
  display: block;
  font-size: clamp(20px, 2.6vw, 36px);
  font-weight: 500;
  color: var(--ink-sub);
  margin-top: 12px;
  letter-spacing: -0.02em;
}

.section-lead {
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 2.0;
  max-width: 680px;
  color: var(--ink);
}
.section-lead + .section-lead { margin-top: 24px; color: var(--ink-sub); }

/* ===== Service ===== */
.service-list {
  display: flex;
  flex-direction: column;
  gap: 80px;
  margin-top: 80px;
}

.service-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 64px;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}

.service-num {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.24em;
  color: var(--ink-sub);
}

.service-title {
  font-family: var(--font-en);
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 16px;
}

.service-jp {
  font-size: clamp(18px, 1.8vw, 22px);
  font-weight: 500;
  margin-bottom: 32px;
  line-height: 1.6;
}

.service-quote {
  font-family: var(--font-en);
  font-size: 14px;
  font-style: italic;
  color: var(--ink-sub);
  margin-bottom: 32px;
  border-left: 2px solid var(--ink);
  padding-left: 16px;
  line-height: 1.6;
}

.service-desc {
  font-size: 15px;
  line-height: 2.0;
  color: var(--ink);
  margin-bottom: 32px;
  max-width: 600px;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.service-tags span {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  letter-spacing: 0.04em;
  color: var(--ink-sub);
}

@media (max-width: 768px) {
  .service-item { grid-template-columns: 1fr; gap: 24px; }
  .service-list { gap: 56px; margin-top: 56px; }
}

/* ===== About ===== */
.about-bg { background: var(--surface); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 80px;
  margin-top: 16px;
  align-items: start;
}

.about-table { width: 100%; }

.about-table dl {
  display: grid;
  grid-template-columns: 160px 1fr;
  border-top: 1px solid var(--border);
}

.about-table dt,
.about-table dd {
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
}

.about-table dt {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-sub);
}

.about-table dd { font-weight: 500; }

@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-table dl { grid-template-columns: 110px 1fr; }
  .about-table dt, .about-table dd { padding: 18px 0; font-size: 14px; }
}

/* ===== Numbers ===== */
.numbers-headline {
  font-size: clamp(40px, 7vw, 96px);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.04em;
  margin-bottom: 24px;
  font-family: var(--font-en);
}

.numbers-sub {
  font-size: clamp(15px, 1.3vw, 17px);
  color: var(--ink-sub);
  margin-bottom: 96px;
}

.numbers-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.numbers-item {
  background: var(--bg);
  padding: 64px 48px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 280px;
}

.numbers-num {
  font-family: var(--font-en);
  font-size: clamp(56px, 9vw, 128px);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.04em;
}

.numbers-label {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-sub);
  margin-top: 32px;
}

.numbers-quote {
  margin-top: 96px;
  font-size: clamp(20px, 2.4vw, 32px);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: -0.01em;
  max-width: 720px;
}

.numbers-quote .en {
  display: block;
  font-size: clamp(13px, 1.2vw, 15px);
  font-weight: 400;
  color: var(--ink-sub);
  margin-top: 12px;
  font-style: italic;
}

@media (max-width: 768px) {
  .numbers-grid { grid-template-columns: 1fr; }
  .numbers-item { padding: 40px 24px; min-height: 200px; }
  .numbers-sub { margin-bottom: 56px; }
  .numbers-quote { margin-top: 56px; }
}

/* ===== Mission ===== */
.mission-bg { background: var(--surface); }

.mvv {
  display: flex;
  flex-direction: column;
  gap: 96px;
  margin-top: 16px;
}

.mvv-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 64px;
  padding-top: 48px;
  border-top: 1px solid var(--border);
}

.mvv-label {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.mvv-jp {
  font-size: clamp(24px, 3.4vw, 40px);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.mvv-en {
  font-family: var(--font-en);
  font-size: clamp(14px, 1.3vw, 17px);
  color: var(--ink-sub);
  font-style: italic;
}

.mvv-values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.mvv-value-num {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.28em;
  color: var(--ink-sub);
  margin-bottom: 16px;
}

.mvv-value-en {
  font-family: var(--font-en);
  font-size: clamp(20px, 2.4vw, 28px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.mvv-value-jp {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-sub);
}

@media (max-width: 768px) {
  .mvv-item { grid-template-columns: 1fr; gap: 24px; }
  .mvv-values { grid-template-columns: 1fr; gap: 32px; }
  .mvv { gap: 56px; }
}

/* ===== Recruit CTA ===== */
.recruit-cta {
  background: var(--ink);
  color: var(--invert);
  padding: 160px 0;
}

.recruit-cta .container {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.recruit-cta .section-label { color: rgba(255,255,255,0.5); }
.recruit-cta .section-label::before { background: rgba(255,255,255,0.5); }

.recruit-cta-title {
  font-size: clamp(40px, 7vw, 96px);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: -0.04em;
  font-family: var(--font-en);
  margin-bottom: 8px;
}

.recruit-cta-jp {
  font-size: clamp(20px, 2.4vw, 30px);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.recruit-cta-lead {
  font-size: clamp(15px, 1.3vw, 17px);
  color: rgba(255,255,255,0.7);
  max-width: 600px;
  line-height: 1.9;
}

.recruit-cta-link {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
  padding: 18px 32px;
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: 999px;
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  align-self: flex-start;
  transition: background 200ms ease, color 200ms ease, border-color 200ms ease;
}

.recruit-cta-link:hover {
  background: var(--invert);
  color: var(--ink);
  border-color: var(--invert);
}

.recruit-cta-link span { font-size: 16px; }

@media (max-width: 768px) {
  .recruit-cta { padding: 96px 0; }
}

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 96px;
  margin-top: 16px;
  align-items: start;
}

.contact-info {
  font-size: 15px;
  line-height: 1.95;
}

.contact-info p { margin-bottom: 24px; }

.contact-direct {
  font-family: var(--font-en);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--ink-sub);
  border-top: 1px solid var(--border);
  padding-top: 24px;
}
.contact-direct a {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-row label {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-sub);
}

.form-row input,
.form-row textarea,
.form-row select {
  padding: 14px 0;
  border: none;
  border-bottom: 1px solid var(--border);
  background: transparent;
  font-family: inherit;
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  outline: none;
  border-radius: 0;
  transition: border-color 200ms ease;
}

.form-row input:focus,
.form-row textarea:focus,
.form-row select:focus { border-bottom-color: var(--ink); }

.form-row textarea { resize: vertical; min-height: 120px; line-height: 1.7; }

.form-checkbox {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  color: var(--ink-sub);
}

.form-submit {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 32px;
  background: var(--ink);
  color: var(--invert);
  border: none;
  border-radius: 999px;
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: opacity 200ms ease, transform 200ms ease;
  width: 100%;
  max-width: 320px;
}
.form-submit:hover { opacity: 0.85; transform: translateX(2px); }
.form-submit span { margin-left: 16px; font-size: 18px; }

@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

/* ===== Footer ===== */
.footer {
  background: var(--ink);
  color: var(--invert);
  padding: 96px 0 32px;
}

.footer-mark {
  font-family: var(--font-en);
  font-weight: 800;
  font-size: clamp(72px, 16vw, 240px);
  line-height: 0.9;
  letter-spacing: -0.05em;
  margin-bottom: 64px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 48px;
  margin-bottom: 64px;
}

.footer-col h4 {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 16px;
}

.footer-col ul { display: flex; flex-direction: column; gap: 8px; }

.footer-col a, .footer-col p {
  font-size: 14px;
  color: rgba(255,255,255,0.85);
  transition: color 200ms ease;
  line-height: 1.7;
}

.footer-col a:hover { color: var(--invert); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.15);
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; align-items: flex-start; }
  .footer { padding: 72px 0 24px; }
}

/* ===== Subpage hero ===== */
.subpage-hero { padding: 200px 0 96px; }

.subpage-title {
  font-size: clamp(48px, 9vw, 144px);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.04em;
  font-family: var(--font-en);
  margin-bottom: 24px;
}

.subpage-jp {
  font-size: clamp(18px, 2vw, 26px);
  font-weight: 500;
  color: var(--ink-sub);
}

.subpage-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 40px;
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-sub);
  transition: color 200ms ease;
}
.subpage-back:hover { color: var(--ink); }

@media (max-width: 768px) {
  .subpage-hero { padding: 140px 0 56px; }
}

/* ===== Recruit page ===== */
.recruit-section {
  padding: 96px 0;
  border-top: 1px solid var(--border);
}

.recruit-section h2 {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 56px;
}

.recruit-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.recruit-card {
  padding: 36px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color 200ms ease, transform 200ms ease;
}
.recruit-card:hover { border-color: var(--ink); transform: translateY(-4px); }

.recruit-card-num {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--ink-sub);
}
.recruit-card-title {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.01em;
}
.recruit-card-desc {
  font-size: 14px;
  color: var(--ink-sub);
  line-height: 1.85;
}

.recruit-roles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.recruit-role {
  background: var(--bg);
  padding: 48px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.recruit-role-num {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--ink-sub);
}
.recruit-role-title {
  font-family: var(--font-en);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.recruit-role-jp {
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 8px;
}
.recruit-role-desc {
  font-size: 14px;
  color: var(--ink-sub);
  line-height: 1.85;
}

.recruit-want {
  max-width: 720px;
  font-size: 17px;
  line-height: 1.95;
}
.recruit-want p { margin-bottom: 24px; }
.recruit-want .quote {
  margin-top: 48px;
  color: var(--ink-sub);
  font-style: italic;
}

@media (max-width: 768px) {
  .recruit-list, .recruit-roles { grid-template-columns: 1fr; }
  .recruit-section { padding: 64px 0; }
}

/* ===== Privacy page ===== */
.policy {
  padding: 0 0 120px;
  max-width: 800px;
  margin: 0 auto;
  font-size: 15px;
  line-height: 1.95;
}

.policy h2 {
  font-size: 18px;
  font-weight: 700;
  margin: 48px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.policy p, .policy ul { color: var(--ink); margin-bottom: 16px; }
.policy ul { padding-left: 24px; list-style: disc; }
.policy a { text-decoration: underline; text-underline-offset: 4px; }