/* ==============================
   Nakell - Common Stylesheet
   ============================== */

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

:root {
  --dark-brown: #1a1614;
  --dark-brown-2: #141210;
  --off-white: #faf8f4;
  --light-beige: #f4f0ea;
  --gold-beige: #c8a96e;
  --text-light: #f2ede6;
  --text-dark: #1a1816;
  --text-sub: #888480;
  --header-h: 72px;
}

html { scroll-behavior: smooth; }

body {
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  background: var(--off-white);
  color: var(--text-dark);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ==============================
   Teardrop motif
   ============================== */
.teardrop {
  display: inline-block;
  background: var(--gold-beige);
  border-radius: 50% 50% 50% 50% / 30% 30% 70% 70%;
  transform: rotate(0deg);
}
.teardrop-sm { width: 10px; height: 14px; opacity: 0.7; }
.teardrop-lg { width: 380px; height: 500px; opacity: 0.04; }

/* ==============================
   Header / Navigation
   ============================== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--dark-brown);
  z-index: 1000;
  border-bottom: 1px solid rgba(200, 169, 110, 0.12);
}
.nav-inner {
  max-width: 1280px;
  height: 100%;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-light);
  font-weight: 700;
  letter-spacing: 0.18em;
  font-size: 18px;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}
.nav-menu a {
  color: var(--text-light);
  font-size: 14px;
  letter-spacing: 0.08em;
  transition: color 0.2s;
}
.nav-menu a:hover { color: var(--gold-beige); }
.nav-cta {
  display: inline-block;
  padding: 10px 22px;
  background: var(--gold-beige);
  color: var(--dark-brown);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  border-radius: 2px;
  transition: opacity 0.2s;
}
.nav-cta:hover { opacity: 0.85; }

.nav-toggle {
  display: none;
  width: 32px; height: 24px;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: var(--text-light);
  transition: transform 0.3s, opacity 0.3s, top 0.3s;
}
.nav-toggle span:nth-child(1) { top: 2px; }
.nav-toggle span:nth-child(2) { top: 11px; }
.nav-toggle span:nth-child(3) { top: 20px; }
.nav-toggle.open span:nth-child(1) { top: 11px; transform: rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { top: 11px; transform: rotate(-45deg); }

/* ==============================
   Hero (TOP)
   ============================== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 640px;
  background: var(--dark-brown);
  color: var(--text-light);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-bg-drop {
  position: absolute;
  right: -80px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}
.hero-inner {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  place-items: center;
  padding: 0 24px;
}
.hero-catch,
.hero-final {
  grid-area: 1 / 1;
  opacity: 0;
  transition: opacity 1.2s ease-out;
}
.hero-catch {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  font-size: 36px;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: var(--text-light);
}
.hero-catch.is-active { opacity: 1; }
.hero-catch-line1 {
  white-space: nowrap;
  margin-bottom: 0.15em;
}
.hero-catch-line2 {
  display: grid;
  min-height: 1.4em;
}
.hero-catch-line2 > .hero-catch-swap {
  grid-area: 1 / 1;
  opacity: 0;
  transition: opacity 0.6s ease;
  white-space: nowrap;
}
.hero-catch-swap.is-visible {
  opacity: 1;
}
.hero-final {
  text-align: center;
  transition: opacity 1.4s ease-in;
}
.hero-final.is-active { opacity: 1; }
.hero-final .brand {
  font-size: 72px;
  letter-spacing: 0.18em;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 18px;
  opacity: 0;
  transition: opacity 1.4s ease-in;
}
.hero-final.is-active .brand { opacity: 1; }
.hero-final .tag {
  font-size: 15px;
  letter-spacing: 0.3em;
  color: var(--gold-beige);
  opacity: 0;
  transition: opacity 1s ease-in 0.4s;
}
.hero-final.is-active .tag { opacity: 1; }
.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: 40px;
  transform: translateX(-50%);
  color: var(--text-light);
  font-size: 11px;
  letter-spacing: 0.3em;
  opacity: 0.7;
  z-index: 2;
}
.hero-scroll::after {
  content: "";
  display: block;
  width: 1px;
  height: 40px;
  background: var(--gold-beige);
  margin: 10px auto 0;
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ==============================
   Page header (sub pages)
   ============================== */
.page-header {
  background: var(--dark-brown);
  color: var(--text-light);
  padding: calc(var(--header-h) + 80px) 0 80px;
  text-align: center;
}
.page-header .label {
  display: block;
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--gold-beige);
  margin-bottom: 16px;
}
.page-header h1 {
  font-size: 38px;
  letter-spacing: 0.12em;
  font-weight: 600;
}
.page-header .header-cta {
  margin-top: 36px;
}
.page-header .header-cta .btn {
  background: var(--gold-beige);
  color: var(--dark-brown);
}

/* ==============================
   Generic sections
   ============================== */
section { padding: 100px 0; }
.section-title {
  text-align: center;
  margin-bottom: 60px;
}
.section-title .en {
  display: block;
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--gold-beige);
  margin-bottom: 14px;
}
.section-title h2 {
  font-size: 32px;
  letter-spacing: 0.08em;
  font-weight: 600;
}
.bg-off { background: var(--off-white); }
.bg-beige { background: var(--light-beige); }
.bg-dark { background: var(--dark-brown); color: var(--text-light); }
.bg-dark .section-title h2 { color: var(--text-light); }

/* Problem section */
.problem-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}
.problem-card {
  background: #fff;
  padding: 40px 36px;
  border: 1px solid rgba(26,22,20,0.06);
  border-radius: 4px;
}
.problem-card h3 {
  font-size: 18px;
  color: var(--gold-beige);
  letter-spacing: 0.15em;
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(200,169,110,0.3);
}
.problem-card ul { list-style: none; }
.problem-card li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 14px;
  font-size: 15px;
  color: var(--text-dark);
}
.problem-card li::before {
  content: "";
  position: absolute;
  left: 0; top: 10px;
  width: 8px; height: 11px;
  background: var(--gold-beige);
  border-radius: 50% 50% 50% 50% / 30% 30% 70% 70%;
}
.problem-answer {
  text-align: center;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 36px;
  background: var(--dark-brown);
  color: var(--text-light);
  border-radius: 4px;
}
.problem-answer em {
  color: var(--gold-beige);
  font-style: normal;
}

/* Service overview */
.service-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.service-card {
  background: #fff;
  padding: 48px 40px;
  border-radius: 4px;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(26,22,20,0.08);
}
.service-card .en {
  font-size: 28px;
  letter-spacing: 0.12em;
  color: var(--gold-beige);
  font-weight: 600;
  margin-bottom: 10px;
}
.service-card .ja {
  font-size: 14px;
  color: var(--text-sub);
  letter-spacing: 0.2em;
  margin-bottom: 20px;
}
.service-card p {
  font-size: 15px;
  margin-bottom: 28px;
  min-height: 84px;
}

/* Features */
.features {
  position: relative;
  overflow: hidden;
}
.feature-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 60px;
  padding: 50px 0;
  border-top: 1px solid rgba(26,22,20,0.1);
  align-items: center;
}
.feature-item:last-child { border-bottom: 1px solid rgba(26,22,20,0.1); }
.feature-item .num {
  font-size: 72px;
  font-weight: 300;
  letter-spacing: 0.05em;
  color: var(--gold-beige);
  line-height: 1;
}
.feature-item h3 {
  font-size: 22px;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}
.feature-item p { font-size: 15px; color: var(--text-sub); }

.purpose-drops {
  position: absolute;
  right: 40px;
  bottom: 40px;
  display: flex;
  align-items: flex-end;
  gap: 14px;
  pointer-events: none;
}
.purpose-drops .teardrop { opacity: 0.15; }
.purpose-drops .d1 { width: 30px; height: 42px; }
.purpose-drops .d2 { width: 50px; height: 70px; }
.purpose-drops .d3 { width: 80px; height: 110px; }

/* Brands */
.brands-lead {
  text-align: center;
  font-size: 15px;
  color: var(--text-sub);
  margin-bottom: 48px;
}
.brands-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}
.brand-card {
  background: #fff;
  border-radius: 6px;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.brand-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(26,22,20,0.08);
}
.brand-card-img {
  overflow: hidden;
  aspect-ratio: 16 / 9;
}
.brand-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.brand-card:hover .brand-card-img img {
  transform: scale(1.03);
}
.brand-card-body {
  padding: 32px 28px;
}
.brand-card-name {
  font-size: 26px;
  letter-spacing: 0.1em;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 6px;
}
.brand-card-label {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.15em;
  color: var(--gold-beige);
  margin-bottom: 16px;
}
.brand-card-body p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-sub);
  margin-bottom: 24px;
}

/* Track Record */
.record-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  text-align: center;
}
.record-item .num {
  font-size: 64px;
  font-weight: 300;
  color: var(--gold-beige);
  letter-spacing: 0.03em;
  line-height: 1;
  margin-bottom: 14px;
}
.record-item .num small { font-size: 22px; margin-left: 4px; }
.record-item .label {
  font-size: 14px;
  letter-spacing: 0.2em;
  color: var(--text-light);
}

/* Company summary */
.company-table {
  max-width: 760px;
  margin: 0 auto;
  width: 100%;
  border-collapse: collapse;
}
.company-table th, .company-table td {
  padding: 20px 24px;
  text-align: left;
  border-bottom: 1px solid rgba(26,22,20,0.1);
  font-size: 15px;
  vertical-align: top;
}
.company-table th {
  width: 200px;
  color: var(--gold-beige);
  font-weight: 600;
  letter-spacing: 0.1em;
}
.company-summary .more {
  text-align: center;
  margin-top: 50px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 16px 40px;
  background: var(--dark-brown);
  color: var(--text-light);
  font-size: 14px;
  letter-spacing: 0.15em;
  font-weight: 600;
  border-radius: 2px;
  transition: opacity 0.2s, transform 0.2s;
  border: 1px solid var(--dark-brown);
}
.btn:hover { opacity: 0.85; transform: translateY(-2px); }
.btn-gold { background: var(--gold-beige); color: var(--dark-brown); border-color: var(--gold-beige); }
.btn-outline { background: transparent; color: var(--text-light); border: 1px solid var(--text-light); }
.btn-outline-dark { background: transparent; color: var(--text-dark); border: 1px solid var(--text-dark); }

/* CTA area */
.cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: rgba(200,169,110,0.25);
  border-radius: 4px;
  overflow: hidden;
}
.cta-card {
  padding: 60px 40px;
  background: var(--dark-brown);
  text-align: center;
}
.cta-card h3 {
  font-size: 20px;
  letter-spacing: 0.12em;
  margin-bottom: 14px;
  color: var(--text-light);
}
.cta-card .en {
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--gold-beige);
  margin-bottom: 28px;
  display: block;
}
.cta-card p {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 28px;
}

/* ==============================
   Footer
   ============================== */
.site-footer {
  background: var(--dark-brown-2);
  color: var(--text-light);
  padding: 70px 0 36px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 30px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(200,169,110,0.15);
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.18em;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  list-style: none;
}
.footer-nav a {
  font-size: 13px;
  color: var(--text-light);
  letter-spacing: 0.08em;
  transition: color 0.2s;
}
.footer-nav a:hover { color: var(--gold-beige); }
.footer-copy {
  margin-top: 30px;
  text-align: center;
  font-size: 12px;
  color: var(--text-sub);
  letter-spacing: 0.1em;
}

/* ==============================
   Service page
   ============================== */
.service-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 0;
  border-bottom: 1px solid rgba(26,22,20,0.08);
}
.service-block:last-child { border-bottom: none; }
.service-block.reverse .service-media { order: 2; }
.service-media {
  background: var(--light-beige);
  aspect-ratio: 4/3;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.service-media .big-en {
  font-size: 72px;
  color: var(--gold-beige);
  font-weight: 700;
  letter-spacing: 0.1em;
  opacity: 0.4;
}
.service-info .tag {
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--gold-beige);
  margin-bottom: 16px;
  display: block;
}
.service-info h2 {
  font-size: 34px;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}
.service-info .lead {
  font-size: 15px;
  margin-bottom: 24px;
}
.service-info .stats {
  display: flex;
  gap: 30px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.service-info .stats div {
  font-size: 13px;
  color: var(--text-sub);
  letter-spacing: 0.08em;
}
.service-info .stats strong {
  display: block;
  color: var(--gold-beige);
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 4px;
}

/* ==============================
   News page
   ============================== */
.news-empty {
  text-align: center;
  padding: 80px 20px;
  background: #fff;
  border-radius: 4px;
  color: var(--text-sub);
  font-size: 15px;
  letter-spacing: 0.1em;
  border: 1px solid rgba(26,22,20,0.06);
}

/* ==============================
   Contact form
   ============================== */
.contact-form {
  max-width: 720px;
  margin: 0 auto;
  background: #fff;
  padding: 56px 48px;
  border-radius: 4px;
  border: 1px solid rgba(26,22,20,0.06);
}
.form-row { margin-bottom: 28px; }
.form-row label {
  display: block;
  font-size: 14px;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  font-weight: 600;
}
.form-row label .req {
  color: var(--gold-beige);
  font-size: 11px;
  margin-left: 8px;
  font-weight: 400;
}
.form-row label .opt {
  color: var(--text-sub);
  font-size: 11px;
  margin-left: 8px;
  font-weight: 400;
}
.form-row input,
.form-row textarea {
  width: 100%;
  padding: 14px 16px;
  font-size: 15px;
  font-family: inherit;
  border: 1px solid rgba(26,22,20,0.15);
  border-radius: 2px;
  background: var(--off-white);
  color: var(--text-dark);
  transition: border-color 0.2s;
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--gold-beige);
}
.form-row textarea { min-height: 160px; resize: vertical; }
.form-submit { text-align: center; margin-top: 20px; }
.form-submit button {
  padding: 16px 60px;
  background: var(--dark-brown);
  color: var(--text-light);
  font-size: 14px;
  letter-spacing: 0.2em;
  font-weight: 600;
  border-radius: 2px;
  transition: opacity 0.2s;
}
.form-submit button:hover { opacity: 0.85; }
.form-submit button:disabled { opacity: 0.5; cursor: not-allowed; }
.form-thanks {
  display: none;
  text-align: center;
  padding: 60px 30px;
}
.form-thanks h3 {
  font-size: 24px;
  color: var(--gold-beige);
  margin-bottom: 16px;
  letter-spacing: 0.08em;
}
.form-thanks p { color: var(--text-sub); }
.form-thanks.is-visible { display: block; }
.contact-info {
  max-width: 720px;
  margin: 40px auto 0;
  text-align: center;
  font-size: 13px;
  color: var(--text-sub);
}

/* ==============================
   Privacy
   ============================== */
.privacy-body {
  max-width: 820px;
  margin: 0 auto;
}
.privacy-body h2 {
  font-size: 18px;
  margin: 40px 0 16px;
  letter-spacing: 0.08em;
  color: var(--gold-beige);
}
.privacy-body h2:first-child { margin-top: 0; }
.privacy-body p, .privacy-body li {
  font-size: 14px;
  color: var(--text-dark);
  margin-bottom: 10px;
}
.privacy-body ul {
  padding-left: 24px;
  margin-bottom: 16px;
}

/* ==============================
   Responsive
   ============================== */
@media (max-width: 768px) {
  .container { padding: 0 20px; }
  section { padding: 70px 0; }

  .nav-inner { padding: 0 20px; }
  .nav-menu {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    flex-direction: column;
    background: var(--dark-brown);
    padding: 30px 20px;
    gap: 22px;
    transform: translateY(-120%);
    transition: transform 0.35s ease;
    border-bottom: 1px solid rgba(200,169,110,0.15);
  }
  .nav-menu.open { transform: translateY(0); }
  .nav-menu li { width: 100%; text-align: center; }
  .nav-toggle { display: block; }
  .nav-cta { width: 100%; text-align: center; }

  .hero-catch { font-size: 22px; letter-spacing: 0.08em; align-items: flex-start; }
  .hero-final .brand { font-size: 48px; }
  .hero-final .tag { font-size: 12px; }
  .hero-bg-drop { right: -160px; }

  .page-header { padding: calc(var(--header-h) + 50px) 0 50px; }
  .page-header h1 { font-size: 26px; }

  .section-title h2 { font-size: 24px; }

  .problem-wrap { grid-template-columns: 1fr; gap: 20px; }
  .problem-answer { font-size: 16px; padding: 24px; }

  .service-grid { grid-template-columns: 1fr; }

  .feature-item {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 36px 0;
  }
  .feature-item .num { font-size: 54px; }
  .feature-item h3 { font-size: 18px; }

  .brands-grid { grid-template-columns: 1fr; gap: 28px; }
  .brand-card-body { padding: 24px 20px; }

  .record-grid { grid-template-columns: 1fr; gap: 36px; }
  .record-item .num { font-size: 48px; }

  .company-table th, .company-table td { display: block; width: 100%; padding: 10px 0; }
  .company-table th { border-bottom: none; padding-bottom: 4px; }
  .company-table td { padding-top: 0; padding-bottom: 18px; }

  .cta-grid { grid-template-columns: 1fr; }
  .cta-card { padding: 44px 24px; }

  .footer-top { flex-direction: column; align-items: flex-start; }
  .footer-nav { gap: 14px 22px; }

  .service-block { grid-template-columns: 1fr; gap: 30px; padding: 50px 0; }
  .service-block.reverse .service-media { order: 0; }
  .service-info h2 { font-size: 24px; }
  .service-media .big-en { font-size: 44px; }

  .contact-form { padding: 36px 24px; }

  .purpose-drops { right: 10px; bottom: 10px; gap: 8px; }
  .purpose-drops .d1 { width: 18px; height: 24px; }
  .purpose-drops .d2 { width: 28px; height: 40px; }
  .purpose-drops .d3 { width: 44px; height: 60px; }
}