/* STYLESHEET: Tynxen Design System */
/* Design Archetype: STICKY-SPLIT */
/* Primary System: Deep Indigo, Soft Slate, Electric Cyan Accent */

:root {
  --primary: #312e81;
  --primary-light: #4f46e5;
  --accent: #06b6d4;
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --font-family: 'Noto Sans JP', 'Montserrat', sans-serif;
  --nav-height: 80px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --border-radius: 0px; /* Swiss/Structured clean sharp corner design */
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  color: var(--text);
  background-color: var(--surface);
}

body {
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

/* Typography Scale */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.3;
  color: #0f172a;
}

p {
  margin-bottom: 1.5rem;
  color: #334155;
}

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

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

/* Header & Nav CSS */
.lumen-header {
  position: sticky;
  top: 0;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.lumen-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

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

.lumen-brand-anchor {
  display: flex;
  align-items: center;
}

.lumen-logo-img {
  display: block;
  max-height: 48px;
  width: auto;
}

.lumen-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1100;
}

.lumen-menu-toggle span {
  width: 100%;
  height: 3px;
  background-color: var(--text);
  transition: var(--transition);
}

.lumen-nav-list {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 2rem;
}

.lumen-nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
}

.lumen-nav-link:hover {
  color: var(--primary-light);
}

.lumen-nav-btn {
  background-color: var(--primary);
  color: #ffffff;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  transition: var(--transition);
}

.lumen-nav-btn:hover {
  background-color: var(--primary-light);
  color: #ffffff;
}

/* Dynamic STICKY-SPLIT System layout rules */
@media (min-width: 992px) {
  .lumen-split-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: calc(100vh - var(--nav-height));
  }
  
  .lumen-sticky-column {
    position: sticky;
    top: var(--nav-height);
    height: calc(100vh - var(--nav-height));
    overflow: hidden;
    display: flex;
    align-items: center;
    padding: 4rem;
  }
  
  .lumen-sticky-content {
    max-width: 500px;
    margin: 0 auto;
  }
  
  .lumen-scrolling-column {
    padding: 4rem;
    background-color: var(--surface);
    border-left: 1px solid var(--border);
  }
}

@media (max-width: 991px) {
  .lumen-split-container {
    display: flex;
    flex-direction: column;
  }
  
  .lumen-sticky-column {
    padding: 3rem 1.5rem;
  }
  
  .lumen-scrolling-column {
    padding: 3rem 1.5rem;
  }
}/* Layout specific decoration / UI block rules */
.lumen-scroll-block {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.lumen-full-img {
  width: 100%;
  height: auto;
  max-height: 450px;
  object-fit: cover;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
}

.lumen-border-radius {
  border-radius: var(--border-radius);
}

.lumen-tag {
  display: inline-block;
  background-color: rgba(6, 182, 212, 0.15);
  color: var(--accent);
  padding: 0.25rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.lumen-tag-alt {
  display: inline-block;
  background-color: rgba(79, 70, 229, 0.1);
  color: var(--primary-light);
  padding: 0.25rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.lumen-gradient-text {
  background: linear-gradient(90deg, #4f46e5, #06b6d4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.lumen-hero-lead {
  font-size: 1.15rem;
  margin-bottom: 2rem;
  opacity: 0.9;
}

.lumen-hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.lumen-btn {
  display: inline-block;
  padding: 1rem 2rem;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

.lumen-btn-primary {
  background-color: var(--primary-light);
  color: #ffffff;
  border: none;
}

.lumen-btn-primary:hover {
  background-color: var(--accent);
  color: #ffffff;
}

.lumen-btn-outline {
  background-color: transparent;
  border: 2px solid var(--primary);
  color: var(--primary);
}

.lumen-btn-outline:hover {
  background-color: var(--primary);
  color: #ffffff;
}

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

.lumen-hero-trust {
  display: flex;
  gap: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.5rem;
  flex-wrap: wrap;
}

.lumen-trust-item {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}

.lumen-trust-item span {
  display: block;
  font-weight: 700;
  color: #ffffff;
  font-size: 1rem;
}

/* Card Overlays */
.lumen-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2.5rem;
  box-shadow: var(--shadow-md);
}

.lumen-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* Problem Framing Area Styles */
.lumen-problem-card {
  background: var(--bg);
  border-left: 4px solid var(--primary-light);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.lumen-problem-num {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-light);
  margin-bottom: 0.5rem;
}

.lumen-problem-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

/* Benefit Grid Module */
.lumen-benefit-grid {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.lumen-benefit-card {
  padding: 2rem;
  background: var(--bg);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.lumen-benefit-card:hover {
  border-color: var(--primary-light);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.lumen-benefit-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.lumen-benefit-card h4 {
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

/* Service Presentation Module */
.lumen-service-item {
  border-bottom: 1px solid var(--border);
  padding-bottom: 3rem;
}

.lumen-service-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.lumen-service-img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  margin-bottom: 1.5rem;
}

.lumen-service-item h3 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.lumen-bullet-list {
  list-style: none;
  margin: 1.5rem 0;
}

.lumen-bullet-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
}

.lumen-bullet-list li::before {
  content: "■";
  position: absolute;
  left: 0;
  color: var(--primary-light);
  font-size: 0.8rem;
  top: 0.1rem;
}/* Timeline / Process Step Design */
.lumen-timeline {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  position: relative;
  padding-left: 2rem;
}

.lumen-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background-color: var(--border);
}

.lumen-timeline-step {
  position: relative;
}

.lumen-timeline-step::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--primary-light);
  border: 3px solid #ffffff;
}

.lumen-time-badge {
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 0.25rem;
}

.lumen-timeline-step h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

/* Testimonial Elements */
.lumen-testi-card {
  padding: 2.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  margin-bottom: 2rem;
}

.lumen-testi-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.lumen-testi-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--primary-light);
}

.lumen-testi-header h4 {
  font-size: 1.1rem;
}

.lumen-testi-header small {
  color: var(--text-muted);
}

/* FAQ Accordion Layout */
.lumen-faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.lumen-faq-trigger {
  width: 100%;
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  font-family: var(--font-family);
  transition: var(--transition);
}

.lumen-faq-trigger:hover {
  background-color: var(--bg);
}

.lumen-faq-icon {
  font-size: 1.5rem;
  color: var(--primary-light);
  line-height: 1;
}

.lumen-faq-content {
  padding: 0 1.5rem 1.5rem 1.5rem;
  display: none;
}

/* Lead Form Section CSS */
.lumen-form-section {
  padding: 6rem 0;
  background-color: var(--bg);
  border-top: 1px solid var(--border);
}

.lumen-form-container {
  max-width: 800px;
}

.lumen-form-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.lumen-form-header h2 {
  font-size: 2.2rem;
  margin-top: 0.5rem;
}

.lumen-form {
  background: var(--surface);
  padding: 3rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
}

.lumen-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 576px) {
  .lumen-form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

.lumen-form-group {
  margin-bottom: 1.5rem;
}

.lumen-label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.lumen-required {
  color: #dc2626;
}

.lumen-input {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  background-color: var(--bg);
  font-family: var(--font-family);
  font-size: 0.95rem;
  color: var(--text);
  transition: var(--transition);
}

.lumen-input:focus {
  outline: none;
  border-color: var(--primary-light);
  background-color: var(--surface);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.lumen-textarea {
  height: 140px;
  resize: vertical;
}

.lumen-help-text {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.lumen-consent-wrapper {
  margin: 2rem 0;
}

.lumen-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  cursor: pointer;
  font-size: 0.88rem;
  user-select: none;
}

.lumen-checkbox-label input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.lumen-checkbox-custom {
  position: relative;
  height: 20px;
  width: 20px;
  background-color: var(--bg);
  border: 1px solid var(--border);
  flex-shrink: 0;
  top: 3px;
}

.lumen-checkbox-label:hover input ~ .lumen-checkbox-custom {
  border-color: var(--primary-light);
}

.lumen-checkbox-label input:checked ~ .lumen-checkbox-custom {
  background-color: var(--primary-light);
  border-color: var(--primary-light);
}

.lumen-checkbox-custom::after {
  content: "";
  position: absolute;
  display: none;
  left: 6px;
  top: 2px;
  width: 6px;
  height: 11px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.lumen-checkbox-label input:checked ~ .lumen-checkbox-custom::after {
  display: block;
}

.lumen-form-alert {
  padding: 1rem;
  margin-bottom: 1.5rem;
  font-weight: 500;
  font-size: 0.95rem;
}

.lumen-error-alert {
  background-color: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
}

.lumen-success-alert {
  background-color: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #166534;
}

.lumen-form-footer-info {
  margin-top: 2rem;
  font-size: 0.85rem;
}

.lumen-next-steps {
  margin-top: 1.5rem;
  background-color: var(--surface);
  border: 1px solid var(--border);
  padding: 1.5rem;
}

.lumen-next-steps h5 {
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.lumen-next-steps ol {
  padding-left: 1.2rem;
}

.lumen-next-steps li {
  margin-bottom: 0.25rem;
}/* Footer CSS Framework */
.lumen-footer {
  background-color: #0f172a;
  color: #94a3b8;
  padding: 5rem 0 2.5rem 0;
  border-top: 2px solid #1e293b;
}

.lumen-footer h5 {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.lumen-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 2fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

@media (max-width: 768px) {
  .lumen-footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

.lumen-footer-info-brand img {
  margin-bottom: 1.5rem;
}

.lumen-footer-bio {
  font-size: 0.9rem;
  line-height: 1.6;
}

.lumen-footer-links ul {
  list-style: none;
}

.lumen-footer-links li {
  margin-bottom: 0.75rem;
}

.lumen-footer-links a {
  color: #94a3b8;
}

.lumen-footer-links a:hover {
  color: #ffffff;
}

.lumen-footer-contact p {
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.lumen-contact-note {
  font-size: 0.8rem;
  color: #64748b;
  margin-top: 1rem;
}

.lumen-footer-bottom {
  border-top: 1px solid #1e293b;
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.lumen-footer-legal-anchors {
  display: flex;
  gap: 2rem;
}

.lumen-footer-legal-anchors a {
  color: #64748b;
  font-size: 0.85rem;
}

.lumen-footer-legal-anchors a:hover {
  color: #ffffff;
}

.lumen-copyright {
  font-size: 0.85rem;
  color: #64748b;
}

/* Cookie Notice Consent Banner */
.lumen-cookie-banner {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  right: 1.5rem;
  background-color: #ffffff;
  color: var(--text);
  padding: 1.5rem;
  box-shadow: 0 20px 25px -5px rgba(0,0,0,0.15), 0 10px 10px -5px rgba(0,0,0,0.04);
  border: 1px solid var(--border);
  z-index: 10000;
}

@media (min-width: 768px) {
  .lumen-cookie-banner {
    left: auto;
    width: 480px;
  }
}

.lumen-cookie-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.lumen-cookie-content p {
  font-size: 0.85rem;
  margin-bottom: 0;
  line-height: 1.6;
}

.lumen-cookie-actions {
  display: flex;
  gap: 0.5rem;
}

.lumen-cookie-btn {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.lumen-cookie-accept-btn {
  background-color: var(--primary);
  color: #ffffff;
}

.lumen-cookie-accept-btn:hover {
  background-color: var(--primary-light);
}

.lumen-cookie-decline-btn {
  background-color: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.lumen-cookie-decline-btn:hover {
  background-color: var(--bg);
}

/* Scroll Progress Ring Module (Signature Effect) */
.lumen-progress-ring-wrapper {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 56px;
  height: 56px;
  z-index: 900;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, transform 0.3s;
}

.lumen-progress-ring-wrapper.visible {
  opacity: 1;
  visibility: visible;
}

.lumen-progress-ring-wrapper:hover {
  transform: scale(1.08);
}

.lumen-progress-ring-svg {
  transform: rotate(-90deg);
}

.lumen-progress-ring-bg {
  stroke: var(--border);
}

.lumen-progress-ring-fill {
  stroke: var(--primary-light);
  stroke-dasharray: 150.79; /* 2 * PI * r (r=24) */
  stroke-dashoffset: 150.79;
  transition: stroke-dashoffset 0.1s;
}

.lumen-progress-ring-arrow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.1rem;
  font-weight: bold;
  color: var(--primary-light);
}

/* Mobile Nav Menu Adjustments */
@media (max-width: 991px) {
  .lumen-menu-toggle {
    display: flex;
  }
  
  .lumen-nav {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--nav-height));
    background: #ffffff;
    padding: 3rem 1.5rem;
    z-index: 999;
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
    border-top: 1px solid var(--border);
  }
  
  .lumen-nav.active {
    transform: translateX(0);
  }
  
  .lumen-nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }
  
  .lumen-nav-link {
    font-size: 1.25rem;
  }
  
  .lumen-nav-btn {
    display: inline-block;
    width: 100%;
    text-align: center;
    font-size: 1.1rem;
    padding: 1rem;
  }
  
  .lumen-menu-toggle.active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }
  
  .lumen-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .lumen-menu-toggle.active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }
}

/* Accessibility: prefers-reduced-motion fallback */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .lumen-progress-ring-wrapper, .lumen-btn, .lumen-nav, .lumen-benefit-card {
    transition: none !important;
    animation: none !important;
  }
}