@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700&display=swap');

:root {
  --navy: #1B3A5C;
  --navy-dark: #132c47;
  --silver: #8899aa;
  --light: #f5f7f9;
  --white: #ffffff;
  --text: #2d2d2d;
  --text-light: #666666;
  --border: #e2e7ec;
}

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

body {
  font-family: 'Noto Sans JP', sans-serif;
  color: var(--text);
  background: var(--white);
  font-weight: 300;
  line-height: 1.7;
}

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

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

ul {
  list-style: none;
}

/* ===========================
   HEADER
=========================== */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(6px);
  z-index: 1000;
  border-bottom: 1px solid var(--border);
  height: 72px;
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 36px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--navy);
  letter-spacing: 0.15em;
  white-space: nowrap;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-menu a {
  font-size: 0.82rem;
  color: var(--text);
  letter-spacing: 0.06em;
  transition: color 0.25s;
  white-space: nowrap;
}

.nav-menu a:hover {
  color: var(--navy);
}

.btn-nav-cta {
  background: var(--navy);
  color: var(--white) !important;
  padding: 10px 24px;
  border-radius: 3px;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  transition: background 0.25s;
  white-space: nowrap;
}

.btn-nav-cta:hover {
  background: var(--navy-dark) !important;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  transition: all 0.3s;
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  width: 100%;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  z-index: 999;
  padding: 24px 36px 32px;
  flex-direction: column;
  gap: 0;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  padding: 14px 0;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  letter-spacing: 0.06em;
}

.mobile-nav .btn-nav-cta {
  margin-top: 20px;
  text-align: center;
  padding: 14px 24px;
  border-radius: 3px;
  display: block;
}

/* ===========================
   PAGE HEADER (inner pages)
=========================== */
.page-header {
  margin-top: 72px;
  padding: 64px 0 54px;
  background: var(--light);
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 300;
  color: var(--navy);
  letter-spacing: 0.2em;
  margin-bottom: 10px;
}

.page-header .en {
  font-size: 0.78rem;
  color: var(--silver);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* ===========================
   HERO SLIDER
=========================== */
.hero {
  position: relative;
  width: 100%;
  height: calc(100vh - 72px);
  margin-top: 72px;
  overflow: hidden;
  min-height: 520px;
}

.hero-slides {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(10, 25, 45, 0.55) 0%,
    rgba(10, 25, 45, 0.2) 55%,
    rgba(10, 25, 45, 0.0) 100%
  );
}

.hero-content {
  position: absolute;
  top: 50%;
  left: 9%;
  transform: translateY(-50%);
  color: var(--white);
}

.hero-content h1 {
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  font-weight: 300;
  letter-spacing: 0.18em;
  line-height: 1.3;
  margin-bottom: 22px;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.25);
}

.hero-content p {
  font-size: clamp(0.82rem, 1.4vw, 1rem);
  font-weight: 300;
  letter-spacing: 0.1em;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
  line-height: 1.9;
}

.hero-controls {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  border: none;
  cursor: pointer;
  transition: all 0.3s;
  padding: 0;
}

.hero-dot.active {
  background: var(--white);
  transform: scale(1.2);
}

.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: white;
  width: 50px;
  height: 50px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background 0.25s;
  font-size: 1.1rem;
}

.hero-arrow:hover {
  background: rgba(255, 255, 255, 0.3);
}

.hero-arrow.prev { left: 24px; }
.hero-arrow.next { right: 24px; }

/* ===========================
   SHARED LAYOUT
=========================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 36px;
}

.section-label {
  text-align: center;
  margin-bottom: 52px;
}

.section-label .en {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--silver);
  margin-bottom: 10px;
}

.section-label h2 {
  font-size: 1.6rem;
  font-weight: 300;
  letter-spacing: 0.18em;
  color: var(--navy);
  position: relative;
  display: inline-block;
}

.section-label h2::after {
  content: '';
  display: block;
  width: 36px;
  height: 2px;
  background: var(--navy);
  margin: 14px auto 0;
}

/* ===========================
   PICKUP TICKER
=========================== */
.pickup {
  padding: 84px 0;
  background: var(--light);
}

.carousel-ticker-wrap {
  overflow: hidden;
  /* fade edges */
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 6%, black 94%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 0%, black 6%, black 94%, transparent 100%);
}

.carousel-ticker {
  display: flex;
  gap: 24px;
  width: max-content;
  will-change: transform;
}

.pickup-card {
  flex: 0 0 340px;
  width: 340px;
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  cursor: pointer;
}

.pickup-card img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}

.pickup-card:hover img {
  transform: scale(1.06);
}

.pickup-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 25, 45, 0.6) 0%, transparent 50%);
  display: flex;
  align-items: flex-end;
  padding: 20px 22px;
  transition: background 0.4s;
}

.pickup-card:hover .pickup-card-overlay {
  background: linear-gradient(to top, rgba(10, 25, 45, 0.75) 0%, transparent 55%);
}

.pickup-card-overlay span {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 300;
}

/* ===========================
   ABOUT SECTION (top page)
=========================== */
.about-section {
  position: relative;
  width: 100%;
  min-height: 600px;
  display: flex;
  align-items: stretch;
  overflow: hidden;
}

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

.about-bg-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.about-glass-panel {
  position: relative;
  z-index: 1;
  margin-left: auto;
  width: 62%;
  display: flex;
  align-items: center;
  /* padding-left を広めに取りテキストを不透明ゾーンに配置 */
  padding: 80px 72px 80px 240px;
}

/* ガラス背景だけ ::before に分離 → テキスト自体はマスクの影響を受けない */
.about-glass-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  backdrop-filter: blur(20px) brightness(1.02);
  -webkit-backdrop-filter: blur(20px) brightness(1.02);
  background: rgba(255, 255, 255, 0.62);
  -webkit-mask-image: linear-gradient(
    to right,
    transparent 0%,
    rgba(0, 0, 0, 0.55) 16%,
    black 30%
  );
  mask-image: linear-gradient(
    to right,
    transparent 0%,
    rgba(0, 0, 0, 0.55) 16%,
    black 30%
  );
}

.about-text {
  position: relative;
  z-index: 1; /* ::before (z-index:0) より前面に配置し、マスクの影響を受けない */
}

.about-text .tag {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--silver);
  border-bottom: 1px solid var(--silver);
  padding-bottom: 6px;
  margin-bottom: 24px;
}

.about-text h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--navy);
  line-height: 1.55;
  margin-bottom: 24px;
}

.about-text p {
  font-size: 0.9rem;
  color: var(--text);
  line-height: 2.1;
  margin-bottom: 16px;
}

.about-text p:last-of-type {
  margin-bottom: 36px;
}

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

/* ===========================
   STRENGTHS
=========================== */
.strengths {
  padding: 80px 0;
  background: var(--navy);
}

.strengths .section-label .en {
  color: rgba(255, 255, 255, 0.4);
}

.strengths .section-label h2 {
  color: var(--white);
}

.strengths .section-label h2::after {
  background: rgba(255, 255, 255, 0.35);
}

.strengths-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.strength-item {
  padding: 30px 20px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 4px;
}

.strength-item .number {
  font-size: 2.8rem;
  font-weight: 300;
  color: var(--white);
  letter-spacing: 0.04em;
  line-height: 1;
  margin-bottom: 10px;
}

.strength-item .number span {
  font-size: 1.1rem;
}

.strength-item .label {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 0.12em;
  margin-bottom: 8px;
}

.strength-item .desc {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.05em;
}

/* ===========================
   CTA SECTION
=========================== */
.cta-section {
  padding: 80px 0;
  background: var(--light);
  text-align: center;
}

.cta-section p {
  font-size: 1.1rem;
  font-weight: 300;
  letter-spacing: 0.12em;
  color: var(--navy);
  margin-bottom: 32px;
}

.btn-primary {
  display: inline-block;
  background: var(--navy);
  color: var(--white);
  padding: 15px 46px;
  border-radius: 3px;
  font-size: 0.88rem;
  letter-spacing: 0.1em;
  transition: background 0.25s;
}

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

/* ===========================
   FOOTER
=========================== */
footer {
  background: #0f2337;
  color: rgba(255, 255, 255, 0.75);
  padding: 64px 0 0;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 36px 56px;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 64px;
}

.footer-brand .name {
  font-size: 1rem;
  color: var(--white);
  font-weight: 500;
  letter-spacing: 0.15em;
  margin-bottom: 6px;
}

.footer-brand .tagline {
  font-size: 0.72rem;
  opacity: 0.45;
  letter-spacing: 0.08em;
  margin-bottom: 22px;
}

.footer-brand .info {
  font-size: 0.78rem;
  line-height: 2.1;
  opacity: 0.65;
}

.footer-brand .btn-footer-cta {
  display: inline-block;
  margin-top: 22px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: rgba(255, 255, 255, 0.75);
  padding: 10px 24px;
  font-size: 0.78rem;
  border-radius: 3px;
  letter-spacing: 0.06em;
  transition: border-color 0.25s, background 0.25s;
}

.footer-brand .btn-footer-cta:hover {
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.06);
}

.footer-col h4 {
  font-size: 0.78rem;
  color: var(--white);
  letter-spacing: 0.15em;
  font-weight: 500;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul a {
  font-size: 0.78rem;
  opacity: 0.6;
  letter-spacing: 0.04em;
  transition: opacity 0.2s;
}

.footer-col ul a:hover {
  opacity: 1;
}

.footer-copy {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 18px 36px;
  text-align: center;
  font-size: 0.7rem;
  opacity: 0.4;
  letter-spacing: 0.04em;
}

/* ===========================
   WORKS PAGE
=========================== */
.works-filter {
  padding: 40px 0 52px;
  text-align: center;
  background: var(--white);
  border-bottom: 1px solid var(--border);
}

.filter-btns {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 9px 26px;
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--text-light);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  cursor: pointer;
  border-radius: 2px;
  transition: all 0.25s;
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 300;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
}

.works-grid-section {
  padding: 64px 0 80px;
  background: var(--white);
}

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

.work-card {
  background: var(--white);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
  transition: transform 0.25s, box-shadow 0.25s;
  border: 1px solid var(--border);
}

.work-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 32px rgba(0, 0, 0, 0.1);
}

.work-card.hidden {
  display: none;
}

.work-card-img {
  position: relative;
  overflow: hidden;
}

.work-card-img img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.work-card:hover .work-card-img img {
  transform: scale(1.04);
}

.work-card-cat {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--navy);
  color: var(--white);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  padding: 4px 12px;
  border-radius: 2px;
}

.work-card-body {
  padding: 20px 22px 24px;
}

.work-card-body h3 {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--navy);
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.work-card-body p {
  font-size: 0.78rem;
  color: var(--text-light);
  line-height: 1.75;
}

/* ===========================
   ABOUT PAGE
=========================== */
.company-section {
  padding: 72px 0;
  background: var(--white);
}

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

.company-table th,
.company-table td {
  padding: 18px 24px;
  font-size: 0.88rem;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.company-table th {
  width: 180px;
  color: var(--navy);
  font-weight: 500;
  background: var(--light);
}

.company-table td {
  color: var(--text);
  line-height: 1.8;
}

.access-section {
  padding: 72px 0;
  background: var(--light);
}

.map-wrap {
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border);
  margin-top: 0;
}

.map-wrap iframe {
  width: 100%;
  height: 420px;
  display: block;
  border: none;
}

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 1024px) {
  .strengths-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .works-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .about-glass-panel {
    width: 65%;
    padding: 60px 40px 60px 180px;
  }

  .pickup-card {
    flex: 0 0 calc(50% - 12px);
    min-width: calc(50% - 12px);
  }
}

@media (max-width: 768px) {
  .header-inner {
    padding: 0 20px;
  }

  .nav-menu {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero-content {
    left: 6%;
    right: 6%;
  }

  .hero-arrow {
    width: 38px;
    height: 38px;
    font-size: 0.9rem;
  }

  .hero-arrow.prev { left: 12px; }
  .hero-arrow.next { right: 12px; }

  .container {
    padding: 0 20px;
  }

  .carousel-outer {
    padding: 0 36px;
  }

  .pickup-card {
    flex: 0 0 80vw;
    width: 80vw;
  }

  .about-glass-panel {
    width: 100%;
    background: rgba(255, 255, 255, 0.78);
    padding: 52px 28px;
  }

  .strengths-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

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

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 40px;
  }

  .footer-brand {
    grid-column: auto;
  }

  .company-table th {
    width: 120px;
    padding: 14px 16px;
  }

  .company-table td {
    padding: 14px 16px;
  }

  .page-header h1 {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .strengths-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .strength-item .number {
    font-size: 2.2rem;
  }

  .filter-btns {
    gap: 8px;
  }

  .filter-btn {
    padding: 8px 18px;
    font-size: 0.78rem;
  }

  .company-table,
  .company-table tbody,
  .company-table tr,
  .company-table th,
  .company-table td {
    display: block;
    width: 100%;
  }

  .company-table th {
    border-bottom: none;
    padding-bottom: 4px;
  }

  .company-table td {
    padding-top: 4px;
  }
}