/* 1. Reset and Global Variables */
:root {
  --primary-color: #0B192C;
  --primary-light: #1F3044;
  --accent-color: #D6AD60;
  --accent-hover: #B38728;
  --light-bg: #F8FAFC;
  --white: #FFFFFF;
  --dark-text: #1E293B;
  --light-text: #64748B;
  --border-color: #E2E8F0;
  --success-color: #10B981;
  --error-color: #EF4444;
  --max-width: 1200px;
  --transition: all 0.3s ease;
}

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

html {
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  color: var(--dark-text);
  scroll-behavior: smooth;
  scroll-padding-top: 80px; /* Header spacing */
}

body {
  background-color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

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

ul {
  list-style: none;
}

/* Base Layout Container */
.section-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 80px 24px;
}

/* Button Component */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 700;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

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

.btn-secondary {
  background-color: transparent;
  border-color: var(--white);
  color: var(--white);
}
.btn-secondary:hover {
  background-color: var(--white);
  color: var(--primary-color);
}

.btn-header {
  padding: 8px 18px;
  font-size: 14px;
  background-color: var(--accent-color);
  color: var(--primary-color);
}
.btn-header:hover {
  background-color: var(--accent-hover);
  color: var(--white);
}

/* 2. Header and Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--primary-color);
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  z-index: 1000;
  transition: var(--transition);
}

.header-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo img {
  display: block;
}

.main-nav ul {
  display: flex;
  gap: 30px;
}

.main-nav a {
  color: var(--white);
  font-size: 15px;
  font-weight: 500;
}

.main-nav a:hover {
  color: var(--accent-color);
}

.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 6px;
}

.mobile-nav-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  background-color: var(--white);
  transition: var(--transition);
}

/* Active Hamburger state */
.mobile-nav-toggle.active span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}
.mobile-nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.mobile-nav-toggle.active span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* 3. Hero Section */
.hero-section {
  position: relative;
  background-image: url('images/hero.jpg');
  background-size: cover;
  background-position: center;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(11,25,44,0.95) 0%, rgba(11,25,44,0.7) 100%);
  z-index: 1;
}

.hero-container {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 60px 24px;
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 780px;
}

.hero-tag {
  display: inline-block;
  color: var(--accent-color);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 2px;
  margin-bottom: 20px;
  text-transform: uppercase;
  border-left: 3px solid var(--accent-color);
  padding-left: 10px;
}

.hero-content h1 {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  color: var(--white);
  line-height: 1.3;
  margin-bottom: 24px;
}

.hero-content p {
  font-size: clamp(16px, 2vw, 18px);
  color: #CBD5E1;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

.hero-trust {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--white);
  font-size: 14px;
}

.trust-icon {
  width: 20px;
  height: 20px;
  color: var(--accent-color);
}

/* 4. Section Headers */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px auto;
}

.section-subtitle {
  display: inline-block;
  color: var(--accent-color);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-header h2 {
  font-size: clamp(26px, 4vw, 36px);
  color: var(--primary-color);
  font-weight: 700;
  margin-bottom: 16px;
}

.section-header p {
  color: var(--light-text);
  font-size: 16px;
}

/* 5. About Section */
.about-section {
  background-color: var(--white);
}

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

.about-image-container img {
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.about-text-content .section-subtitle {
  margin-bottom: 8px;
}

.about-text-content h2 {
  font-size: clamp(26px, 4vw, 36px);
  color: var(--primary-color);
  margin-bottom: 20px;
}

.about-text-content p {
  color: var(--light-text);
  font-size: 16px;
  margin-bottom: 20px;
}

/* 6. Benefits Section */
.benefits-section {
  background-color: var(--light-bg);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

.benefit-card {
  background-color: var(--white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
  transition: var(--transition);
}

.benefit-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.benefit-img-wrapper img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.benefit-card-content {
  padding: 30px;
  position: relative;
}

.benefit-icon-box {
  position: absolute;
  top: -24px;
  left: 30px;
  width: 48px;
  height: 48px;
  background-color: var(--primary-color);
  color: var(--accent-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.benefit-icon-box svg {
  width: 24px;
  height: 24px;
}

.benefit-card h3 {
  font-size: 18px;
  color: var(--primary-color);
  margin-bottom: 12px;
  margin-top: 10px;
}

.benefit-card p {
  color: var(--light-text);
  font-size: 14px;
  line-height: 1.6;
}

/* 7. Services Section */
.services-section {
  background-color: var(--white);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.service-item {
  background-color: var(--light-bg);
  padding: 40px;
  border-radius: 8px;
  border-left: 4px solid var(--accent-color);
}

.service-item h3 {
  font-size: 20px;
  color: var(--primary-color);
  margin-bottom: 14px;
}

.service-item p {
  color: var(--light-text);
  font-size: 15px;
}

/* 8. How Section (Steps) */
.how-section {
  background-color: var(--primary-color);
  color: var(--white);
}

.how-section .section-header h2 {
  color: var(--white);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 30px;
}

.step-card {
  background-color: var(--primary-light);
  padding: 40px 30px;
  border-radius: 8px;
  position: relative;
  transition: var(--transition);
}

.step-card:hover {
  transform: translateY(-5px);
}

.step-num {
  font-size: 40px;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 16px;
  font-family: 'Inter', sans-serif;
  opacity: 0.8;
}

.step-card h3 {
  font-size: 18px;
  margin-bottom: 12px;
}

.step-card p {
  color: #94A3B8;
  font-size: 14px;
}

/* 9. Testimonials Section */
.testimonials-section {
  background-color: var(--light-bg);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.testimonial-card {
  background-color: var(--white);
  padding: 40px;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

.testimonial-text {
  font-style: italic;
  color: var(--dark-text);
  margin-bottom: 24px;
  font-size: 15px;
}

.testimonial-author strong {
  display: block;
  font-size: 15px;
  color: var(--primary-color);
}

.testimonial-author span {
  display: block;
  font-size: 13px;
  color: var(--light-text);
}

/* 10. FAQ Section */
.faq-section {
  background-color: var(--white);
}

.faq-accordion-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border-color);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  background: none;
  border: none;
  outline: none;
  font-size: 16px;
  font-weight: 700;
  color: var(--primary-color);
  cursor: pointer;
  text-align: left;
}

.faq-chevron {
  width: 24px;
  height: 24px;
  transition: transform 0.3s ease;
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer p {
  padding-bottom: 24px;
  color: var(--light-text);
  font-size: 15px;
}

/* 11. Form Section */
.form-section {
  background-color: var(--light-bg);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.form-info h2 {
  font-size: 32px;
  color: var(--primary-color);
  font-weight: 700;
  margin-bottom: 24px;
}

.form-info p {
  color: var(--light-text);
  font-size: 16px;
  margin-bottom: 20px;
}

.form-guarantee {
  background-color: var(--white);
  padding: 20px;
  border-left: 3px solid var(--accent-color);
  font-size: 14px !important;
  color: var(--dark-text) !important;
}

.form-card {
  background-color: var(--white);
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
  position: relative;
  overflow: hidden;
}

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

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

label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 6px;
}

.required {
  color: var(--error-color);
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 15px;
  color: var(--dark-text);
  background-color: var(--white);
  outline: none;
  transition: var(--transition);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
textarea:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(214,173,96,0.15);
}

.phone-input-wrap {
  display: flex;
  align-items: center;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
  background-color: var(--white);
}

.phone-input-wrap:focus-within {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(214,173,96,0.15);
}

.phone-prefix {
  background-color: var(--light-bg);
  padding: 12px 16px;
  color: var(--light-text);
  font-weight: 600;
  border-right: 1px solid var(--border-color);
}

.phone-input-wrap input {
  border: none;
  border-radius: 0;
  outline: none;
}

.form-help {
  font-size: 12px;
  color: var(--light-text);
}

.form-checkbox-group {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.form-checkbox-group input {
  margin-top: 4px;
}

.form-checkbox-group label {
  font-size: 13px;
  color: var(--light-text);
}

.legal-link {
  color: var(--accent-color);
  text-decoration: underline;
}

.btn-submit {
  width: 100%;
  background-color: var(--primary-color);
  color: var(--white);
  border: none;
}
.btn-submit:hover {
  background-color: var(--primary-light);
}

/* Spinner and Loaders */
.form-loading {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255,255,255,0.9);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--border-color);
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 12px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.form-success-wrapper {
  text-align: center;
  padding: 40px 10px;
}

.success-icon-box {
  margin-bottom: 16px;
}

.form-success-wrapper h3 {
  font-size: 20px;
  color: var(--primary-color);
  margin-bottom: 12px;
}

.form-success-wrapper p {
  color: var(--light-text);
  font-size: 14px;
}

/* 12. Footer Section */
.site-footer {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 80px 0 40px 0;
  border-top: 4px solid var(--accent-color);
}

.footer-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 60px 24px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
}

.footer-logo {
  margin-bottom: 20px;
}

.footer-tagline {
  color: #94A3B8;
  font-size: 14px;
  margin-bottom: 24px;
}

.footer-contact p {
  font-size: 14px;
  margin-bottom: 6px;
  color: #CBD5E1;
}

.footer-contact a {
  color: var(--accent-color);
}

.footer-operator-note {
  font-size: 12px !important;
  color: #64748B !important;
  margin-top: 14px;
  line-height: 1.5;
}

.footer-grid h3 {
  font-size: 16px;
  margin-bottom: 20px;
  color: var(--accent-color);
}

.footer-grid ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-grid a {
  font-size: 14px;
  color: #94A3B8;
}

.footer-grid a:hover {
  color: var(--accent-color);
}

.footer-bottom {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 24px 0 24px;
  border-top: 1px solid #1E293B;
  text-align: center;
  color: #64748B;
  font-size: 13px;
}

/* 13. Back to Top Button */
.scroll-top-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  background-color: var(--accent-color);
  color: var(--primary-color);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 999;
}

.scroll-top-btn.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top-btn svg {
  width: 24px;
  height: 24px;
}

/* 14. Cookie Consent Banner */
.cookie-banner-wrapper {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--primary-color);
  border-top: 2px solid var(--accent-color);
  z-index: 2000;
  display: none;
  animation: slideUp 0.4s ease;
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.cookie-banner-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px;
  display: flex;
  gap: 30px;
  align-items: center;
  justify-content: space-between;
}

.cookie-banner-content p {
  color: #CBD5E1;
  font-size: 13px;
  line-height: 1.6;
}

.cookie-banner-content a {
  color: var(--accent-color);
  text-decoration: underline;
}

.cookie-banner-actions {
  display: flex;
  gap: 15px;
  flex-shrink: 0;
}

.btn-cookie-accept {
  background-color: var(--accent-color);
  color: var(--primary-color);
  font-size: 13px;
  padding: 8px 20px;
}

.btn-cookie-decline {
  background-color: transparent;
  border-color: #475569;
  color: #94A3B8;
  font-size: 13px;
  padding: 8px 20px;
}

/* 15. Responsive Design Medias */
@media (max-width: 992px) {
  .about-grid,
  .form-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--primary-color);
    padding: 20px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  }

  .main-nav.active {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 15px;
  }

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

  .header-cta {
    display: none;
  }

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

  .cookie-banner-content {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }
}

/* Legal Pages Specific */
.legal-main {
  padding-top: 120px;
  padding-bottom: 80px;
  max-width: 800px;
  margin: 0 auto;
}

.legal-main h1 {
  font-size: 32px;
  color: var(--primary-color);
  margin-bottom: 12px;
}

.legal-meta {
  font-size: 14px;
  color: var(--light-text);
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
}

.legal-main h2 {
  font-size: 20px;
  color: var(--primary-color);
  margin-top: 30px;
  margin-bottom: 16px;
}

.legal-main p, .legal-main li {
  color: var(--dark-text);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.legal-main ul {
  padding-left: 20px;
  margin-bottom: 16px;
  list-style: disc;
}