/* ============================================
   CLEAN FORCE - Style
   Navy #1B3A5C + White + Yellow #FFC107
   ============================================ */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Noto Sans JP', sans-serif;
  font-weight: 400;
  line-height: 1.8;
  color: #333;
  background: #fff;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.3s;
}

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

ul {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 100px 0;
}

/* --- Sample Banner --- */
.sample-banner {
  background: #FFC107;
  color: #1B3A5C;
  text-align: center;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  position: relative;
  z-index: 1001;
}

/* --- Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Section Headers --- */
.section-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: #FFC107;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: 36px;
  font-weight: 900;
  color: #1B3A5C;
  line-height: 1.4;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 16px;
  color: #666;
  max-width: 600px;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header .section-desc {
  margin: 0 auto;
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(27,58,92,0.08);
  transition: box-shadow 0.3s;
  margin-top: 37px;
}

.header.scrolled {
  box-shadow: 0 2px 20px rgba(27,58,92,0.1);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-main {
  font-size: 20px;
  font-weight: 900;
  color: #1B3A5C;
  letter-spacing: 0.05em;
  line-height: 1.2;
}

.logo-sub {
  font-size: 10px;
  color: #999;
  letter-spacing: 0.15em;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-desktop a {
  font-size: 14px;
  font-weight: 500;
  color: #333;
  position: relative;
}

.nav-desktop a:not(.nav-cta):hover {
  color: #1B3A5C;
}

.nav-desktop a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: #FFC107;
  transition: width 0.3s;
}

.nav-desktop a:not(.nav-cta):hover::after {
  width: 100%;
}

.nav-cta {
  background: #1B3A5C;
  color: #fff !important;
  padding: 10px 24px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 14px;
  transition: background 0.3s;
}

.nav-cta:hover {
  background: #142d47;
}

/* --- Hamburger --- */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1002;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #1B3A5C;
  transition: transform 0.3s, opacity 0.3s;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* --- Mobile Nav --- */
.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(27,58,92,0.97);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s;
}

.mobile-nav.active {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.mobile-nav-inner a {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
}

.mobile-nav-cta {
  background: #FFC107;
  color: #1B3A5C !important;
  padding: 14px 40px;
  border-radius: 6px;
  margin-top: 16px;
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, #1B3A5C 0%, #0d1f33 60%, #0a1628 100%);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle at 20% 80%, rgba(255,193,7,0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255,255,255,0.04) 0%, transparent 50%);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 0h60v60H0z' fill='none'/%3E%3Cpath d='M30 0v60M0 30h60' stroke='rgba(255,255,255,0.03)' stroke-width='1'/%3E%3C/svg%3E");
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 120px 20px 80px;
}

.hero-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: #FFC107;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 52px;
  font-weight: 900;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 24px;
}

.hero-desc {
  font-size: 17px;
  color: rgba(255,255,255,0.7);
  line-height: 1.8;
  margin-bottom: 40px;
}

.hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 36px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s;
  border: none;
}

.btn-primary {
  background: #FFC107;
  color: #1B3A5C;
}

.btn-primary:hover {
  background: #e6ac00;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,193,7,0.3);
}

.btn-outline {
  border: 2px solid rgba(255,255,255,0.4);
  color: #fff;
  background: transparent;
}

.btn-outline:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.1);
}

.btn-full {
  width: 100%;
}

.hero-badges {
  display: flex;
  gap: 48px;
  justify-content: center;
}

.hero-badge {
  text-align: center;
}

.hero-badge-num {
  display: block;
  font-size: 36px;
  font-weight: 900;
  color: #FFC107;
  line-height: 1.2;
}

.hero-badge-label {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
}

.hero-scroll span {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.4);
}

.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
  animation: scrollLine 2s infinite;
}

@keyframes scrollLine {
  0% { opacity: 1; transform: scaleY(1); }
  50% { opacity: 0.5; transform: scaleY(0.5); transform-origin: top; }
  100% { opacity: 1; transform: scaleY(1); }
}

/* --- About --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  position: relative;
}

.about-img-placeholder {
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(27,58,92,0.12);
}

.about-img-placeholder svg {
  width: 100%;
  height: auto;
  display: block;
}

.about-exp-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  width: 100px;
  height: 100px;
  background: #FFC107;
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(255,193,7,0.3);
}

.about-exp-num {
  font-size: 32px;
  font-weight: 900;
  color: #1B3A5C;
  line-height: 1;
}

.about-exp-text {
  font-size: 12px;
  font-weight: 700;
  color: #1B3A5C;
}

.about-desc {
  font-size: 15px;
  color: #555;
  margin-bottom: 16px;
}

.about-points {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about-point {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 500;
  color: #1B3A5C;
}

.about-point-icon {
  flex-shrink: 0;
}

/* --- Services --- */
.services {
  background: #f7f9fc;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.service-card {
  background: #fff;
  border-radius: 12px;
  padding: 40px 30px;
  box-shadow: 0 4px 20px rgba(27,58,92,0.06);
  transition: transform 0.3s, box-shadow 0.3s;
  border-top: 3px solid transparent;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(27,58,92,0.12);
  border-top-color: #FFC107;
}

.service-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 20px;
}

.service-icon svg {
  width: 100%;
  height: 100%;
}

.service-name {
  font-size: 20px;
  font-weight: 700;
  color: #1B3A5C;
  margin-bottom: 12px;
}

.service-desc {
  font-size: 14px;
  color: #666;
  margin-bottom: 16px;
  line-height: 1.7;
}

.service-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.service-list li {
  font-size: 13px;
  color: #555;
  padding-left: 18px;
  position: relative;
}

.service-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: #FFC107;
  border-radius: 50%;
}

/* --- Quality --- */
.quality-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.quality-card {
  background: #f7f9fc;
  border-radius: 12px;
  padding: 40px;
  position: relative;
  border-left: 4px solid #FFC107;
  transition: transform 0.3s;
}

.quality-card:hover {
  transform: translateY(-2px);
}

.quality-num {
  font-size: 48px;
  font-weight: 900;
  color: rgba(27,58,92,0.06);
  position: absolute;
  top: 16px;
  right: 24px;
  line-height: 1;
}

.quality-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: #1B3A5C;
  margin-bottom: 12px;
}

.quality-card p {
  font-size: 14px;
  color: #666;
  line-height: 1.7;
}

/* --- Works --- */
.works {
  background: #f7f9fc;
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.work-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(27,58,92,0.06);
  transition: transform 0.3s, box-shadow 0.3s;
}

.work-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(27,58,92,0.12);
}

.work-image svg {
  width: 100%;
  height: auto;
  display: block;
}

.work-info {
  padding: 24px;
}

.work-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: #1B3A5C;
  background: rgba(27,58,92,0.08);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 10px;
}

.work-name {
  font-size: 18px;
  font-weight: 700;
  color: #1B3A5C;
  margin-bottom: 8px;
}

.work-desc {
  font-size: 14px;
  color: #666;
  line-height: 1.6;
}

/* --- Numbers --- */
.numbers {
  background: #1B3A5C;
  padding: 80px 0;
}

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

.number-value {
  font-size: 48px;
  font-weight: 900;
  color: #FFC107;
  line-height: 1.2;
  margin-bottom: 8px;
}

.number-unit {
  font-size: 18px;
  font-weight: 700;
}

.number-label {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
}

/* --- Flow --- */
.flow-steps {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}

.flow-steps::before {
  content: '';
  position: absolute;
  left: 32px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #e0e0e0;
}

.flow-step {
  display: flex;
  gap: 30px;
  padding-bottom: 40px;
  position: relative;
}

.flow-step:last-child {
  padding-bottom: 0;
}

.flow-num {
  width: 64px;
  height: 64px;
  background: #1B3A5C;
  color: #FFC107;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 900;
  flex-shrink: 0;
  position: relative;
  z-index: 2;
}

.flow-content h3 {
  font-size: 18px;
  font-weight: 700;
  color: #1B3A5C;
  margin-bottom: 8px;
  padding-top: 4px;
}

.flow-content p {
  font-size: 14px;
  color: #666;
  line-height: 1.7;
}

/* --- Company --- */
.company {
  background: #f7f9fc;
}

.company-table {
  max-width: 800px;
  margin: 0 auto;
}

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

.company-table th,
.company-table td {
  padding: 18px 20px;
  border-bottom: 1px solid #e0e0e0;
  font-size: 15px;
  text-align: left;
  vertical-align: top;
}

.company-table th {
  width: 160px;
  font-weight: 700;
  color: #1B3A5C;
  background: rgba(27,58,92,0.04);
}

.company-table td {
  color: #555;
}

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}

.contact-tel {
  background: #1B3A5C;
  border-radius: 12px;
  padding: 32px;
  text-align: center;
  margin-bottom: 30px;
}

.contact-tel-label {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 8px;
}

.contact-tel-num {
  font-size: 32px;
  font-weight: 900;
  color: #FFC107;
}

.contact-tel-hours {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
}

.contact-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  font-weight: 500;
}

.contact-feature-icon {
  flex-shrink: 0;
}

.contact-form {
  background: #f7f9fc;
  border-radius: 12px;
  padding: 40px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: #1B3A5C;
  margin-bottom: 6px;
}

.required {
  font-size: 11px;
  color: #fff;
  background: #e53935;
  padding: 2px 6px;
  border-radius: 3px;
  margin-left: 4px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 15px;
  font-family: 'Noto Sans JP', sans-serif;
  transition: border-color 0.3s;
  background: #fff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #1B3A5C;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

/* --- CTA --- */
.cta {
  padding: 80px 0;
  background: linear-gradient(160deg, #1B3A5C, #0d1f33);
}

.cta-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: center;
}

.cta-title {
  font-size: 30px;
  font-weight: 900;
  color: #fff;
  line-height: 1.5;
  margin-bottom: 16px;
}

.cta-desc {
  font-size: 15px;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
  margin-bottom: 28px;
}

.cta-btns {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.cta-tel {
  display: flex;
  flex-direction: column;
}

.cta-tel-label {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
}

.cta-tel-num {
  font-size: 22px;
  font-weight: 900;
  color: #FFC107;
}

.cta-features-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cta-feature-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: rgba(255,255,255,0.8);
}

@media (max-width: 768px) {
  .cta-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .cta-title {
    font-size: 24px;
  }
}

/* --- Footer --- */
.footer {
  background: #0d1f33;
  color: #fff;
  padding: 60px 0 0;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 60px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .logo-main {
  color: #fff;
}

.footer-brand .logo-sub {
  color: rgba(255,255,255,0.5);
}

.footer-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  margin-top: 16px;
  line-height: 1.7;
}

.footer-links {
  display: flex;
  gap: 60px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  color: #FFC107;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 10px;
  transition: color 0.3s;
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

.footer-credit a {
  color: #FFC107;
}

.footer-credit a:hover {
  text-decoration: underline;
}

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

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

  .works-grid .work-card:last-child {
    grid-column: span 2;
    max-width: 50%;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 70px 0;
  }

  .nav-desktop {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-desc {
    font-size: 15px;
  }

  .sp-hide {
    display: none;
  }

  .hero-badges {
    gap: 24px;
  }

  .hero-badge-num {
    font-size: 28px;
  }

  .section-title {
    font-size: 28px;
  }

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

  .about-exp-badge {
    bottom: -10px;
    right: 10px;
    width: 80px;
    height: 80px;
  }

  .about-exp-num {
    font-size: 26px;
  }

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

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

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

  .works-grid .work-card:last-child {
    grid-column: span 1;
    max-width: 100%;
  }

  .numbers-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }

  .number-value {
    font-size: 36px;
  }

  .flow-steps::before {
    left: 24px;
  }

  .flow-num {
    width: 48px;
    height: 48px;
    font-size: 14px;
  }

  .flow-step {
    gap: 20px;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-top {
    flex-direction: column;
    gap: 40px;
  }

  .footer-links {
    gap: 40px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

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

@media (max-width: 480px) {
  .hero-title {
    font-size: 26px;
  }

  .hero-badges {
    flex-direction: column;
    gap: 16px;
  }

  .hero-btns .btn {
    width: 100%;
  }

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

  .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;
  }
}