/* ========================================
   企業サイト共通CSS
   ======================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Yu Gothic Medium", "游ゴシック Medium", YuGothic, "游ゴシック体", "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", "メイリオ", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: #333;
  background-color: #fff;
}

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

ul {
  list-style: none;
}

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

/* Container */
.container {
  width: 1000px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ========================================
   Header
   ======================================== */
.header {
  background-color: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  position: sticky;
  top: 0;
  z-index: 1000;
}

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

.logo a {
  display: flex;
  align-items: center;
}

.logo a img {
  height: 30px;
  width: auto;
}

/* Navigation */
.nav-list {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-list a {
  font-size: 0.9rem;
  font-weight: 500;
  color: #333;
  transition: color 0.3s;
  position: relative;
}

.nav-list a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #2196f3;
  transition: width 0.3s;
}

.nav-list a:hover {
  color: #2196f3;
}

.nav-list a:hover::after {
  width: 100%;
}

.nav-list .nav-contact {
  background-color: #2196f3;
  color: #fff;
  padding: 10px 24px;
  border-radius: 4px;
  transition: background-color 0.3s;
}

.nav-list .nav-contact::after {
  display: none;
}

.nav-list .nav-contact:hover {
  background-color: #1976d2;
  color: #fff;
}

/* Hamburger Menu (CSS only) */
.menu-toggle {
  display: none;
}

.menu-icon {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  cursor: pointer;
  z-index: 1001;
}

.menu-icon span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: #1a2b5e;
  transition: all 0.3s;
  position: relative;
}

.menu-icon span::before,
.menu-icon span::after {
  content: "";
  position: absolute;
  width: 24px;
  height: 2px;
  background-color: #1a2b5e;
  transition: all 0.3s;
}

.menu-icon span::before {
  top: -7px;
}

.menu-icon span::after {
  top: 7px;
}

.menu-toggle:checked + .menu-icon span {
  background-color: transparent;
}

.menu-toggle:checked + .menu-icon span::before {
  top: 0;
  transform: rotate(45deg);
}

.menu-toggle:checked + .menu-icon span::after {
  top: 0;
  transform: rotate(-45deg);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  background: linear-gradient(rgba(26, 43, 94, 0.6), rgba(44, 74, 138, 0.6)),
              url("../images/hero-bg.webp") center / cover no-repeat;
  color: #fff;
  padding: 120px 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.4;
}

.hero p {
  font-size: 1.1rem;
  margin-bottom: 40px;
  opacity: 0.9;
  line-height: 1.8;
}

.btn {
  display: inline-block;
  padding: 14px 40px;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 500;
  transition: all 0.3s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: #2196f3;
  color: #fff;
}

.btn-primary:hover {
  background-color: #1976d2;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(33, 150, 243, 0.4);
}

.btn-outline {
  background-color: transparent;
  color: #fff;
  border: 2px solid #fff;
}

.btn-outline:hover {
  background-color: #fff;
  color: #2196f3;
}

/* ========================================
   Page Header (Sub pages)
   ======================================== */
.page-header {
  background: linear-gradient(135deg, #1a2b5e 0%, #2c4a8a 100%);
  color: #fff;
  padding: 60px 0;
  text-align: center;
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 700;
}

.page-header p {
  font-size: 0.9rem;
  margin-top: 8px;
  opacity: 0.8;
}

/* ========================================
   Sections
   ======================================== */
.section {
  padding: 80px 0;
}

.section-gray {
  background-color: #f8f9fa;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: #1a2b5e;
  margin-bottom: 12px;
}

.section-title p {
  color: #666;
  font-size: 0.95rem;
}

.section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background-color: #2196f3;
  margin: 16px auto 0;
}

/* ========================================
   Cards
   ======================================== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.card {
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.card-icon {
  background: linear-gradient(135deg, #1a2b5e 0%, #2c4a8a 100%);
  color: #fff;
  padding: 40px 24px;
  text-align: center;
  font-size: 2.5rem;
}

.card-icon:has(img) {
  background: none;
  padding: 0;
  overflow: hidden;
  height: 160px;
}

.card-icon img {
  width: 100%;
  height: 110%;
  object-fit: cover;
  object-position: top;
}

.card-body {
  padding: 24px;
}

.card-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #1a2b5e;
  margin-bottom: 12px;
}

.card-body p {
  font-size: 0.9rem;
  color: #666;
  line-height: 1.8;
}

/* ========================================
   About Section (Top page)
   ======================================== */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-intro-text h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: #1a2b5e;
  margin-bottom: 20px;
  line-height: 1.4;
}

.about-intro-text p {
  color: #666;
  margin-bottom: 10px;
  line-height: 1.6;
  font-size: 0.9rem;
}

.about-intro-image {
  border-radius: 8px;
  overflow: hidden;
  height: 300px;
}

.about-intro-image img {
  width: 100%;
  height: 110%;
  object-fit: cover;
  object-position: top;
  border-radius: 8px;
}

/* ========================================
   Company Info Table
   ======================================== */
.info-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 30px;
}

.info-table th,
.info-table td {
  padding: 16px 20px;
  border-bottom: 1px solid #e0e0e0;
  text-align: left;
  font-size: 0.95rem;
}

.info-table th {
  background-color: #f8f9fa;
  font-weight: 600;
  color: #1a2b5e;
  width: 200px;
  white-space: nowrap;
}

/* ========================================
   Vision / Philosophy
   ======================================== */
.philosophy {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.philosophy h3 {
  font-size: 1.5rem;
  color: #1a2b5e;
  margin-bottom: 20px;
}

.philosophy p {
  color: #666;
  line-height: 2;
}

/* History / Timeline */
.timeline {
  max-width: 700px;
  margin: 40px auto 0;
}

.timeline-item {
  display: flex;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid #e0e0e0;
}

.timeline-item:last-child {
  border-bottom: none;
}

.timeline-year {
  font-weight: 700;
  color: #1a2b5e;
  min-width: 80px;
  font-size: 1.1rem;
}

.timeline-desc {
  color: #555;
}

/* ========================================
   Service Detail
   ======================================== */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 60px 0;
  border-bottom: 1px solid #e0e0e0;
}

.service-detail:last-child {
  border-bottom: none;
}

.service-detail.reverse {
  direction: rtl;
}

.service-detail.reverse > * {
  direction: ltr;
}

.service-detail-image {
  background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
  border-radius: 8px;
  height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  color: #1a2b5e;
  overflow: hidden;
}

.service-detail-image img {
  width: 100%;
  height: 115%;
  object-fit: cover;
  object-position: center top;
  border-radius: 8px;
}

.service-detail-text h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: #1a2b5e;
  margin-bottom: 16px;
}

.service-detail-text p {
  color: #666;
  margin-bottom: 20px;
}

.feature-list {
  list-style: none;
}

.feature-list li {
  padding: 6px 0;
  color: #555;
  font-size: 0.9rem;
}

.feature-list li::before {
  content: "\2713";
  color: #2196f3;
  font-weight: 700;
  margin-right: 8px;
}

/* ========================================
   CTA Section
   ======================================== */
.cta {
  background: linear-gradient(135deg, #1a2b5e 0%, #2c4a8a 100%);
  color: #fff;
  text-align: center;
  padding: 60px 0;
}

.cta h2 {
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.cta p {
  opacity: 0.9;
  margin-bottom: 30px;
}

/* ========================================
   Contact Form
   ======================================== */
.contact-form {
  max-width: 700px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-weight: 600;
  color: #1a2b5e;
  margin-bottom: 8px;
  font-size: 0.95rem;
}

.form-group label .required {
  color: #e53935;
  font-size: 0.8rem;
  margin-left: 4px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.3s;
  background-color: #fff;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: #2196f3;
  box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

.form-group textarea {
  height: 180px;
  resize: vertical;
}

.form-submit {
  text-align: center;
  margin-top: 32px;
}

.form-submit .btn {
  min-width: 240px;
  font-family: inherit;
}

.contact-info {
  margin-top: 60px;
  text-align: center;
  color: #666;
}

.contact-info p {
  margin-bottom: 8px;
}

.contact-info a {
  color: #2196f3;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background-color: #1a2b5e;
  color: #fff;
  padding: 60px 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-company .footer-logo {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-company p {
  font-size: 0.85rem;
  opacity: 0.7;
  line-height: 1.8;
}

.footer-nav h4,
.footer-contact h4 {
  font-size: 0.95rem;
  margin-bottom: 16px;
  font-weight: 600;
}

.footer-nav ul li {
  margin-bottom: 8px;
}

.footer-nav ul a {
  font-size: 0.85rem;
  opacity: 0.7;
  transition: opacity 0.3s;
}

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

.footer-contact p {
  font-size: 0.85rem;
  opacity: 0.7;
  margin-bottom: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 0.8rem;
  opacity: 0.6;
}

/* ========================================
   Responsive (768px)
   ======================================== */
@media (max-width: 1040px) {
  .container {
    width: auto;
    padding: 0 20px;
  }
}

@media (max-width: 768px) {
  /* Header */
  .menu-icon {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background-color: #fff;
    box-shadow: -4px 0 12px rgba(0, 0, 0, 0.1);
    transition: right 0.3s;
    padding: 80px 30px 30px;
    z-index: 999;
  }

  .menu-toggle:checked ~ .nav {
    right: 0;
  }

  .nav-list {
    flex-direction: column;
    gap: 0;
  }

  .nav-list li {
    width: 100%;
  }

  .nav-list a {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid #eee;
    font-size: 1rem;
  }

  .nav-list a::after {
    display: none;
  }

  .nav-list .nav-contact {
    text-align: center;
    margin-top: 16px;
    border-radius: 4px;
  }

  /* Overlay */
  .menu-toggle:checked ~ .nav-overlay {
    display: block;
  }

  .nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.4);
    z-index: 998;
  }

  /* Hero */
  .hero {
    padding: 60px 0;
  }

  .hero h1 {
    font-size: 1.7rem;
  }

  .hero p {
    font-size: 0.95rem;
  }

  /* Page Header */
  .page-header {
    padding: 40px 0;
  }

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

  /* Sections */
  .section {
    padding: 50px 0;
  }

  .section-title h2 {
    font-size: 1.4rem;
  }

  /* Cards */
  .card-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* About */
  .about-intro {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  /* Table */
  .info-table th {
    width: 120px;
    font-size: 0.85rem;
  }

  .info-table td {
    font-size: 0.85rem;
  }

  /* Service Detail */
  .service-detail {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .service-detail.reverse {
    direction: ltr;
  }

  /* CTA */
  .cta h2 {
    font-size: 1.4rem;
  }

  /* Footer */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}