/* ============================================
   Variables & Reset
   ============================================ */
:root {
  --navy:        #1a2744;
  --navy-dark:   #111b30;
  --orange:      #e8621a;
  --orange-lt:   #f07a35;
  --gray-bg:     #f5f5f3;
  --gray-mid:    #e0e0dc;
  --white:       #ffffff;
  --text-dark:   #1a1a1a;
  --text-mid:    #555550;
  --text-light:  #888880;

  --font-display: 'Barlow Condensed', sans-serif;
  --font-body:    'Noto Sans JP', sans-serif;

  --max-w:     1200px;
  --sec-pad:   clamp(60px, 8vw, 120px);
  --ease:      0.3s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--gray-bg);
  color: var(--text-dark);
  line-height: 1.7;
  font-size: 16px;
}
img  { max-width: 100%; height: auto; display: block; }
a    { color: inherit; text-decoration: none; }
ul   { list-style: none; }
strong { font-weight: 700; }

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.02em;
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
  display: block;
  margin-bottom: 0.75rem;
}

/* ============================================
   Container
   ============================================ */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 60px);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.9rem 2rem;
  cursor: pointer;
  transition: all var(--ease);
  border: 2px solid transparent;
}
.btn-primary  { background: var(--orange); color: var(--white); border-color: var(--orange); }
.btn-primary:hover  { background: var(--orange-lt); border-color: var(--orange-lt); transform: translateY(-2px); }
.btn-outline  { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.45); }
.btn-outline:hover  { border-color: var(--white); background: rgba(255,255,255,0.08); }
.btn-dark     { background: var(--navy); color: var(--white); border-color: var(--navy); }
.btn-dark:hover     { background: var(--navy-dark); transform: translateY(-2px); }
.btn-white    { background: var(--white); color: var(--navy); border-color: var(--white); }
.btn-white:hover    { background: var(--gray-bg); transform: translateY(-2px); }

/* ============================================
   Header
   ============================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy);
  border-bottom: 2px solid var(--orange);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo { display: flex; flex-direction: column; line-height: 1.1; }
.logo-en {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--white);
  letter-spacing: 0.06em;
}
.logo-ja { font-size: 0.6rem; color: rgba(255,255,255,0.55); letter-spacing: 0.12em; }

.site-nav { display: none; gap: 0.25rem; align-items: center; }
.site-nav a {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.75);
  padding: 0.5rem 0.85rem;
  transition: color var(--ease);
  border-bottom: 2px solid transparent;
}
.site-nav a:hover, .site-nav a.active { color: var(--orange); border-bottom-color: var(--orange); }

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.hamburger span { display: block; width: 24px; height: 2px; background: var(--white); transition: transform var(--ease), opacity var(--ease); }
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile drawer */
.mobile-nav {
  position: fixed;
  top: 64px; left: 0; right: 0;
  background: var(--navy-dark);
  transform: translateY(-110%);
  opacity: 0;
  transition: transform 0.35s ease, opacity 0.35s ease;
  z-index: 99;
}
.mobile-nav.open { transform: translateY(0); opacity: 1; }
.mobile-nav a {
  display: block;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--white);
  padding: 1rem 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  transition: background var(--ease), color var(--ease);
}
.mobile-nav a:hover { background: rgba(232,98,26,0.15); color: var(--orange); }

@media (min-width: 768px) {
  .site-nav { display: flex; }
  .hamburger { display: none; }
  .mobile-nav { display: none !important; }
}

/* ============================================
   Page-load staggered reveal (hero only)
   ============================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(32px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================
   Hero
   ============================================ */
.hero {
  background: var(--navy);
  position: relative;
  overflow: hidden;
  padding: clamp(80px, 12vw, 160px) 0 clamp(110px, 16vw, 220px);
  clip-path: polygon(0 0, 100% 0, 100% 87%, 0 100%);
}
/* Grain texture */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.72' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.065;
  pointer-events: none;
}
/* Diagonal accent stripe */
.hero::after {
  content: '';
  position: absolute;
  top: -20%; right: -4%;
  width: 42%; height: 140%;
  background: linear-gradient(135deg, rgba(232,98,26,0.07), transparent);
  transform: skewX(-7deg);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; }

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--orange);
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  animation: fadeUp 0.8s ease 0.1s both;
}
.hero-eyebrow::after { content: ''; display: block; width: 40px; height: 1px; background: var(--orange); }

.hero h1 {
  font-size: clamp(3.2rem, 8.5vw, 7.5rem);
  color: var(--white);
  line-height: 0.95;
  margin-bottom: 1.5rem;
  animation: fadeUp 0.8s ease 0.25s both;
}
.hero h1 em { color: var(--orange); font-style: normal; }

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255,255,255,0.72);
  max-width: 460px;
  line-height: 1.85;
  margin-bottom: 2.5rem;
  animation: fadeUp 0.8s ease 0.4s both;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fadeUp 0.8s ease 0.55s both;
}

/* ============================================
   Sections — scroll fade-in
   ============================================ */
.section {
  padding: var(--sec-pad) 0;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.section.visible { opacity: 1; transform: translateY(0); }

.section-header { margin-bottom: clamp(2rem, 4vw, 4rem); }
.section-header h2 { font-size: clamp(2rem, 5vw, 3.5rem); }

/* Stagger children */
.stagger-child {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.stagger-child.visible { opacity: 1; transform: translateY(0); }
.stagger-child:nth-child(1) { transition-delay: 0.08s; }
.stagger-child:nth-child(2) { transition-delay: 0.18s; }
.stagger-child:nth-child(3) { transition-delay: 0.28s; }
.stagger-child:nth-child(4) { transition-delay: 0.38s; }

/* ============================================
   Services cards (index)
   ============================================ */
.services-section {
  background: var(--gray-bg);
  margin-top: -70px;
  padding-top: 90px;
}
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.service-card {
  background: var(--white);
  border-left: 4px solid var(--orange);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: transform var(--ease), box-shadow var(--ease);
}
.service-card::before {
  content: attr(data-num);
  position: absolute;
  top: -0.75rem; right: 0.75rem;
  font-family: var(--font-display);
  font-size: 5.5rem;
  font-weight: 900;
  color: rgba(26,39,68,0.05);
  line-height: 1;
  pointer-events: none;
}
.service-card:hover { transform: translateY(-5px); box-shadow: 0 14px 44px rgba(26,39,68,0.11); }
.service-card-icon { font-size: 2.2rem; margin-bottom: 1rem; }
.service-card h3 { font-size: 1.55rem; color: var(--navy); margin-bottom: 0.7rem; }
.service-card p { font-size: 0.9rem; color: var(--text-mid); line-height: 1.8; }
.service-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1.25rem;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
  transition: gap var(--ease);
}
.service-card .card-link:hover { gap: 0.9rem; }

@media (min-width: 768px) {
  .services-grid { grid-template-columns: repeat(3, 1fr); }
  .service-card:nth-child(2) { margin-top: 2.5rem; }
  .service-card:nth-child(3) { margin-top: 1.25rem; }
}

/* ============================================
   Strengths
   ============================================ */
.strengths-section {
  background: var(--navy);
  position: relative;
  overflow: hidden;
}
.strengths-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.72' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.04;
  pointer-events: none;
}
.strengths-section .section-label { color: var(--orange); }
.strengths-section h2 { color: var(--white); }

.strengths-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  position: relative;
  z-index: 1;
}
.strength-item {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 1.5rem;
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 1.25rem;
  align-items: start;
}
.strength-num {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--orange);
  line-height: 1;
}
.strength-item h3 { font-size: 1.15rem; color: var(--white); margin-bottom: 0.4rem; }
.strength-item p { font-size: 0.875rem; color: rgba(255,255,255,0.58); line-height: 1.75; }

@media (min-width: 768px)  { .strengths-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .strengths-grid { grid-template-columns: repeat(4, 1fr); } }

/* ============================================
   CTA Banner
   ============================================ */
.cta-section {
  background: var(--orange);
  position: relative;
  overflow: hidden;
  padding: clamp(56px, 8vw, 110px) 0;
}
.cta-section::before {
  content: 'CONTACT';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-display);
  font-size: clamp(70px, 16vw, 200px);
  font-weight: 900;
  color: rgba(0,0,0,0.055);
  white-space: nowrap;
  pointer-events: none;
  letter-spacing: 0.05em;
}
.cta-inner { position: relative; z-index: 1; text-align: center; }
.cta-inner h2 { font-size: clamp(1.8rem, 4.5vw, 3rem); color: var(--white); margin-bottom: 0.75rem; }
.cta-inner p  { color: rgba(255,255,255,0.85); margin-bottom: 2rem; line-height: 1.8; }

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,0.65);
  padding: clamp(44px, 6vw, 80px) 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}
.footer-brand p { font-size: 0.85rem; line-height: 1.85; margin-top: 0.85rem; }
.footer-nav h4, .footer-contact h4 {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 1rem;
}
.footer-nav a {
  display: block;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  padding: 0.3rem 0;
  transition: color var(--ease);
}
.footer-nav a:hover { color: var(--white); }
.footer-contact p { font-size: 0.875rem; line-height: 1.9; }
.footer-contact a { color: rgba(255,255,255,0.75); transition: color var(--ease); }
.footer-contact a:hover { color: var(--orange); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
  text-align: center;
}
.footer-bottom p { font-size: 0.72rem; color: rgba(255,255,255,0.35); }

@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1.2fr; }
  .footer-bottom { flex-direction: row; justify-content: space-between; text-align: left; }
}

/* ============================================
   Page Hero (inner pages)
   ============================================ */
.page-hero {
  background: var(--navy);
  padding: clamp(56px, 8vw, 100px) 0;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.72' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.055;
  pointer-events: none;
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), transparent);
}
.page-hero-inner { position: relative; z-index: 1; }
.page-hero h1 { font-size: clamp(2.8rem, 7vw, 5.5rem); color: var(--white); }
.breadcrumb { font-size: 0.78rem; color: rgba(255,255,255,0.45); margin-bottom: 1rem; font-family: var(--font-display); letter-spacing: 0.06em; }
.breadcrumb a { color: var(--orange); transition: opacity var(--ease); }
.breadcrumb a:hover { opacity: 0.8; }
.page-sub { color: rgba(255,255,255,0.55); margin-top: 0.5rem; font-size: 0.95rem; }

/* ============================================
   Service Detail Page
   ============================================ */
.service-detail { padding: var(--sec-pad) 0; }
.service-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding: 3.5rem 0;
  border-top: 1px solid var(--gray-mid);
}
.service-block:first-child { border-top: none; padding-top: 0; }
.service-block-number {
  font-family: var(--font-display);
  font-size: 6rem;
  font-weight: 900;
  color: rgba(26,39,68,0.07);
  line-height: 1;
}
.service-block h3 { font-size: clamp(1.5rem, 3vw, 2.2rem); color: var(--navy); margin-bottom: 1rem; line-height: 1.2; }
.service-block p { color: var(--text-mid); line-height: 1.9; margin-bottom: 0.75rem; }
.service-block ul { margin-top: 1.25rem; }
.service-block ul li {
  padding: 0.4rem 0 0.4rem 1.35rem;
  position: relative;
  font-size: 0.9rem;
  color: var(--text-mid);
}
.service-block ul li::before { content: '▸'; position: absolute; left: 0; color: var(--orange); }

.badge-list { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.5rem; }
.badge {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.4rem 0.9rem;
  border: 1.5px solid var(--navy);
  color: var(--navy);
  text-transform: uppercase;
}
.badge-orange { border-color: var(--orange); color: var(--orange); }

@media (min-width: 1024px) {
  .service-block { grid-template-columns: 160px 1fr; align-items: start; }
}

/* ============================================
   Company Page
   ============================================ */
.company-section { padding: var(--sec-pad) 0; }

.company-table { width: 100%; border-collapse: collapse; margin-top: 2rem; }
.company-table th,
.company-table td {
  padding: 1rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--gray-mid);
  font-size: 0.9rem;
  line-height: 1.75;
  vertical-align: top;
}
.company-table th {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--orange);
  background: rgba(26,39,68,0.03);
  white-space: nowrap;
  width: 28%;
}
.company-table td { color: var(--text-mid); }
.company-table a { color: var(--navy); font-weight: 500; transition: color var(--ease); }
.company-table a:hover { color: var(--orange); }

.message-block {
  background: var(--white);
  border-left: 4px solid var(--orange);
  padding: 2.5rem;
  margin-top: 3.5rem;
}
.message-block h3 { font-size: 1.5rem; color: var(--navy); margin-bottom: 1.25rem; }
.message-block p { color: var(--text-mid); line-height: 1.9; margin-bottom: 1rem; }
.message-block p:last-of-type { margin-bottom: 0; }
.message-block .signature { margin-top: 1.75rem; font-size: 0.85rem; color: var(--text-light); padding-top: 1rem; border-top: 1px solid var(--gray-mid); }

.map-placeholder {
  margin-top: 3rem;
  background: var(--gray-mid);
  height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-light);
  font-family: var(--font-display);
  letter-spacing: 0.12em;
  font-size: 0.82rem;
  text-transform: uppercase;
  border: 1px dashed #ccc;
}
.map-placeholder iframe { width: 100%; height: 100%; border: 0; }

/* ============================================
   Contact Page
   ============================================ */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  padding: var(--sec-pad) 0;
}
@media (min-width: 1024px) {
  .contact-layout { grid-template-columns: 1fr 390px; align-items: start; }
}

.contact-info h3 { font-size: 1.45rem; color: var(--navy); margin-bottom: 1.75rem; }
.contact-info-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--gray-mid);
}
.contact-info-label {
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--orange);
  min-width: 52px;
  padding-top: 0.15rem;
}
.contact-info-value { font-size: 0.95rem; color: var(--text-mid); line-height: 1.75; }
.contact-info-value a { color: var(--navy); font-weight: 500; transition: color var(--ease); }
.contact-info-value a:hover { color: var(--orange); }
.contact-info-value .tel-num { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; color: var(--navy); letter-spacing: 0.04em; }

/* Form */
.contact-form {
  background: var(--white);
  padding: 2.5rem;
  border-top: 4px solid var(--orange);
  box-shadow: 0 4px 24px rgba(26,39,68,0.07);
}
.contact-form h3 { font-size: 1.4rem; color: var(--navy); margin-bottom: 1.75rem; }

.form-group { margin-bottom: 1.3rem; }
.form-group label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--navy);
  margin-bottom: 0.5rem;
  font-weight: 700;
}
.form-group .required { color: var(--orange); margin-left: 0.25rem; }
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1.5px solid var(--gray-mid);
  background: var(--gray-bg);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-dark);
  transition: border-color var(--ease), background var(--ease);
  outline: none;
  border-radius: 0;
  -webkit-appearance: none;
  appearance: none;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--orange); background: var(--white); }
.form-group textarea { height: 150px; resize: vertical; }

.form-submit {
  width: 100%;
  padding: 1rem;
  background: var(--navy);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 2px solid var(--navy);
  cursor: pointer;
  transition: background var(--ease), border-color var(--ease), transform var(--ease);
}
.form-submit:hover { background: var(--orange); border-color: var(--orange); transform: translateY(-2px); }
.form-note { margin-top: 1rem; font-size: 0.72rem; color: var(--text-light); text-align: center; line-height: 1.75; }