/* ════════════════════════════════════════
   FMC株式会社 — Corporate Site Styles
   Mobile-first / Concept C "FORWARD"
════════════════════════════════════════ */

/* ── Reset & Variables ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --navy:      #14223D;
  --navy-mid:  #2A3E66;
  --accent:    #4A90FF;
  --orange:    #FF6B35;
  --text:      #1E293B;
  --text-mid:  #475569;
  --text-light:#94A3B8;
  --bg:        #FFFFFF;
  --bg-gray:   #F5F7FB;
  --bg-pale:   #EAF0FA;
  --border:    #E2E8F0;
  --shadow-sm: 0 1px 4px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.07), 0 2px 6px rgba(0,0,0,0.04);
  --radius:    12px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  text-decoration: none;
  color: inherit;
}

ul, ol { list-style: none; }

/* ── Layout ── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: 60px 0;
}

.bg-gray { background: var(--bg-gray); }
.bg-navy { background: var(--navy); }

/* ── Typography ── */
h1, h2, h3 {
  font-weight: 700;
  line-height: 1.3;
  text-wrap: pretty;
  color: var(--navy);
}

h1 {
  font-size: clamp(28px, 7vw, 36px);
  letter-spacing: -0.01em;
}
h2 { font-size: clamp(20px, 5vw, 22px); }
h3 { font-size: 15px; margin-bottom: 8px; }

p {
  color: var(--text-mid);
  line-height: 1.85;
}

.text-white { color: white; }
.sp-br { display: block; }

/* ── Section Labels ── */
.section-label {
  font-family: 'DM Sans', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.section-label::before {
  content: '';
  display: block;
  width: 18px;
  height: 2px;
  background: var(--accent);
  flex-shrink: 0;
  border-radius: 1px;
}

.section-label-center {
  justify-content: center;
}
.section-label-center::before {
  display: none;
}

.section-label-light {
  color: rgba(255,255,255,0.55);
}
.section-label-light::before {
  background: rgba(255,255,255,0.35);
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}
.section-header h2 {
  margin-top: 4px;
}

/* ── Buttons ── */
.btn {
  display: inline-block;
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 13px;
  font-weight: 600;
  padding: 13px 26px;
  border-radius: 100px;
  line-height: 1.2;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity 0.2s ease, transform 0.15s ease;
  text-align: center;
}

.btn:hover {
  opacity: 0.82;
  transform: translateY(-1px);
}

.btn-navy {
  background: var(--navy);
  color: white;
}

.btn-accent {
  background: var(--accent);
  color: white;
}

.btn-outline-accent {
  border: 1.5px solid var(--accent);
  color: var(--accent);
  background: transparent;
}

.btn-outline-white {
  border: 1.5px solid rgba(255,255,255,0.35);
  color: rgba(255,255,255,0.85);
  background: transparent;
}

.btn-orange {
  background: var(--orange);
  color: white;
}

/* ── Eyebrow (Hero) ── */
.eyebrow {
  font-family: 'DM Sans', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--navy);
  opacity: 0.5;
  margin-bottom: 12px;
}

/* ── Fade-in Animation ── */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.65s ease, transform 0.65s ease;
  will-change: opacity, transform;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ════════════════════════
   HEADER
════════════════════════ */
#header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: white;
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s ease;
}
#header.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
  border-bottom-color: transparent;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

/* Logo */
.logo {
  font-family: 'DM Sans', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.04em;
  line-height: 1;
  flex-shrink: 0;
}
.logo span { color: var(--accent); }
.logo-light { color: white; }
.logo-light span { color: var(--accent); }

/* Desktop Nav */
.nav {
  display: none;
  align-items: center;
  gap: 2px;
}

.nav-link {
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-mid);
  padding: 7px 13px;
  border-radius: 7px;
  transition: color 0.18s, background 0.18s;
}
.nav-link:hover {
  color: var(--navy);
  background: var(--bg-gray);
}

.nav-cta-btn {
  font-family: 'DM Sans', sans-serif;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  border: 1.5px solid var(--accent);
  padding: 6px 16px;
  border-radius: 100px;
  margin-left: 10px;
  transition: background 0.18s, color 0.18s;
}
.nav-cta-btn:hover {
  background: var(--accent);
  color: white;
}

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform 0.28s ease, opacity 0.2s ease;
}
.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav overlay */
.nav.open {
  display: flex;
  flex-direction: column;
  position: fixed;
  inset: 56px 0 0 0;
  background: white;
  padding: 28px 20px 40px;
  gap: 4px;
  z-index: 99;
  overflow-y: auto;
  animation: slideDown 0.25s ease;
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.nav.open .nav-link,
.nav.open .nav-cta-btn {
  font-size: 17px;
  padding: 14px 16px;
  border-radius: 10px;
  margin: 0;
  border: none;
  color: var(--navy);
  font-weight: 500;
}
.nav.open .nav-link:hover,
.nav.open .nav-cta-btn:hover {
  background: var(--bg-gray);
  color: var(--navy);
}

/* ════════════════════════
   HERO
════════════════════════ */
#hero {
  background: linear-gradient(150deg, var(--bg-pale) 0%, #F4F8FF 100%);
  padding: 48px 0 40px;
  overflow: hidden;
}

.hero-container {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.hero-text {
  flex: 1;
}

.hero-text h1 {
  margin: 0 0 16px;
  line-height: 1.35;
}

.hero-sub {
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.85;
  margin-bottom: 28px;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.hero-cta .btn {
  width: 100%;
}

.hero-image {
  width: 100%;
}
.hero-image img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

/* ════════════════════════
   ABOUT / PHILOSOPHY
════════════════════════ */
#about {
  background: var(--bg);
}

.about-grid {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-bottom: 36px;
}

/* Mobile: image first */
.about-image {
  width: 100%;
}
.about-image img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.about-text .section-label {
  margin-bottom: 10px;
}

.about-text h2 {
  margin: 0 0 20px;
  line-height: 1.35;
}

.about-text p {
  font-size: 14px;
  margin-bottom: 14px;
  color: var(--text-mid);
}
.about-text p:last-child { margin-bottom: 0; }

/* Philosophy cards */
.philosophy-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.philosophy-card {
  border-radius: 0 var(--radius) var(--radius) 0;
  border-left: 3px solid;
  padding: 18px 22px;
}

.philosophy-mgmt {
  background: var(--bg-pale);
  border-color: var(--navy);
}

.philosophy-corp {
  background: var(--bg-gray);
  border-color: var(--border);
}

.philosophy-label {
  font-family: 'DM Sans', sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: block;
  margin-bottom: 10px;
}

.philosophy-mgmt .philosophy-label { color: var(--navy); opacity: 0.7; }
.philosophy-corp .philosophy-label { color: var(--text-light); }

.philosophy-quote {
  font-size: 20px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
}

.philosophy-corp p {
  font-size: 13px;
  color: var(--text-mid);
  line-height: 1.85;
}

/* ════════════════════════
   SERVICES
════════════════════════ */
.services-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.service-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  align-items: stretch;
  transition: box-shadow 0.2s ease;
}
.service-card:hover {
  box-shadow: var(--shadow-md);
}

/* Mobile: image left, text right */
.service-card-img {
  width: 96px;
  flex-shrink: 0;
}
.service-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 96px;
}

.service-card-body {
  padding: 16px 18px;
  flex: 1;
}
.service-card-body h3 {
  font-size: 14px;
  margin-bottom: 6px;
  line-height: 1.4;
}
.service-card-body p {
  font-size: 13px;
  color: var(--text-mid);
  line-height: 1.75;
}

/* ════════════════════════
   STRENGTHS
════════════════════════ */
.strengths-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.strength-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  align-items: stretch;
  transition: box-shadow 0.2s ease;
}
.strength-card:hover {
  box-shadow: var(--shadow-md);
}

/* Mobile: image left, text right */
.strength-card-img {
  width: 80px;
  flex-shrink: 0;
  background: var(--bg-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px;
}
.strength-card-img img {
  width: 52px;
  height: 52px;
  object-fit: contain;
}

.strength-card-body {
  padding: 16px 18px;
  flex: 1;
}
.strength-card-body h3 {
  font-size: 14px;
  margin-bottom: 6px;
  line-height: 1.4;
}
.strength-card-body p {
  font-size: 13px;
  color: var(--text-mid);
  line-height: 1.75;
}

/* ════════════════════════
   RECRUIT / PARTNER
════════════════════════ */
#recruit {
  padding: 60px 0;
}

.recruit-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.recruit-card {
  border-radius: var(--radius);
  padding: 28px 24px;
  border: 1px solid rgba(255,255,255,0.1);
}

.recruit-card h3 {
  color: white;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
  line-height: 1.4;
}

.recruit-card p {
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 20px;
}

.recruit-primary {
  background: rgba(255,255,255,0.09);
}

.recruit-secondary {
  background: rgba(255,255,255,0.04);
}

.recruit-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 22px;
}

.tag {
  font-family: 'DM Sans', sans-serif;
  font-size: 11px;
  font-weight: 500;
  color: #93C5FD;
  background: rgba(74,144,255,0.18);
  border-radius: 100px;
  padding: 3px 11px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.recruit-card .btn {
  display: block;
  width: 100%;
}

/* ════════════════════════
   COMPANY
════════════════════════ */
.company-wrap {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 760px;
  margin: 0 auto;
  box-shadow: var(--shadow-sm);
}

.company-table {
  width: 100%;
  border-collapse: collapse;
}

.company-table th,
.company-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-size: 14px;
  vertical-align: top;
  line-height: 1.65;
}

.company-table tr:last-child th,
.company-table tr:last-child td {
  border-bottom: none;
}

.company-table th {
  width: 38%;
  background: var(--bg-gray);
  color: var(--text-mid);
  font-weight: 500;
  white-space: nowrap;
}

.company-table td {
  color: var(--text);
}

/* ════════════════════════
   CONTACT CTA
════════════════════════ */
.contact-section {
  position: relative;
  padding: 80px 0;
  overflow: hidden;
}

.contact-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.contact-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.14;
}

.contact-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  opacity: 0.94;
}

.contact-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.contact-content .section-label {
  margin-bottom: 10px;
}

.contact-content h2 {
  color: white;
  font-size: clamp(20px, 5vw, 26px);
  margin-bottom: 16px;
}

.contact-content p {
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  margin-bottom: 6px;
}

.contact-tagline {
  font-style: italic;
  color: rgba(255,255,255,0.4) !important;
  font-size: 13px !important;
  margin-bottom: 32px !important;
  letter-spacing: 0.02em;
}

.contact-content .btn {
  min-width: 220px;
}

/* ════════════════════════
   FOOTER
════════════════════════ */
#footer {
  background: var(--navy);
  padding: 44px 0 28px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.footer-top {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
}

.footer-nav a {
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
  padding: 3px 0;
  transition: color 0.18s;
}
.footer-nav a:hover {
  color: rgba(255,255,255,0.85);
}

.footer-bottom {
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.copyright {
  font-family: 'DM Sans', sans-serif;
  font-size: 12px;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.04em;
}

/* ════════════════════════
   DESKTOP (768px+)
════════════════════════ */
@media (min-width: 768px) {

  /* Base Typography */
  h1 { font-size: 44px; }
  h2 { font-size: 32px; }
  h3 { font-size: 18px; }

  section { padding: 88px 0; }

  .sp-br { display: inline; }

  /* Header */
  .header-inner { height: 64px; }
  .nav { display: flex; }
  .hamburger { display: none; }

  /* Hero */
  #hero { padding: 88px 0; }

  .hero-container {
    flex-direction: row;
    align-items: center;
    gap: 56px;
  }
  .hero-text { flex: 1; }
  .hero-text h1 { font-size: 44px; }
  .hero-sub { font-size: 15px; }

  .hero-cta {
    flex-direction: row;
    gap: 14px;
  }
  .hero-cta .btn { width: auto; }

  .hero-image { flex: 1; }
  .hero-image img {
    height: 400px;
    border-radius: 16px;
  }

  /* About */
  .about-grid {
    display: grid;
    grid-template-columns: 50% 46%;
    gap: 60px;
    align-items: start;
    margin-bottom: 48px;
  }
  /* Desktop: text left, image right */
  .about-text  { order: 1; }
  .about-image { order: 2; }

  .about-image img {
    height: 360px;
    border-radius: 16px;
  }

  .about-text h2 { font-size: 32px; }
  .about-text p  { font-size: 15px; }

  .philosophy-grid {
    flex-direction: row;
    gap: 20px;
  }
  .philosophy-card { flex: 1; }
  .philosophy-quote { font-size: 24px; }

  /* Services */
  .services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .service-card {
    flex-direction: column;
    align-items: stretch;
  }
  .service-card-img {
    width: 100%;
    height: 150px;
  }
  .service-card-img img {
    height: 150px;
    min-height: 150px;
  }
  .service-card-body {
    padding: 22px 24px;
  }
  .service-card-body h3 { font-size: 16px; }
  .service-card-body p  { font-size: 14px; }

  /* Strengths */
  .strengths-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .strength-card {
    flex-direction: column;
    align-items: stretch;
  }
  .strength-card-img {
    width: 100%;
    height: 110px;
    padding: 20px;
  }
  .strength-card-img img {
    width: 68px;
    height: 68px;
    margin: 0 auto;
  }
  .strength-card-body {
    padding: 22px 24px;
  }
  .strength-card-body h3 { font-size: 16px; }
  .strength-card-body p  { font-size: 14px; }

  /* Recruit */
  #recruit { padding: 88px 0; }

  .recruit-grid {
    flex-direction: row;
    gap: 20px;
    align-items: stretch;
  }
  .recruit-card { flex: 1; padding: 36px 32px; }
  .recruit-card h3 { font-size: 18px; }
  .recruit-card p  { font-size: 15px; }

  .recruit-card .btn {
    display: inline-block;
    width: auto;
  }

  /* Company */
  .company-table th,
  .company-table td {
    padding: 18px 28px;
    font-size: 15px;
  }

  /* Contact */
  .contact-section { padding: 108px 0; }
  .contact-content h2 { font-size: 34px; }
  .contact-content p  { font-size: 15px; }

  /* Footer */
  .footer-top {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* ── Large screens ── */
@media (min-width: 1100px) {
  h1 { font-size: 48px; }
}