/* ===================================================================
   XEMVIN COMMUNICATION STUDIES - DESIGN SYSTEM & THEME
   Prefix: .lumen- | Archetype: Bento-Modular | Signature: Aurora
   =================================================================== */
:root {
  --lumen-bg: #070d18;
  --lumen-bg-card: #0e1a2f;
  --lumen-bg-card-hover: #142440;
  --lumen-bg-elevated: #162846;
  --lumen-bg-light: #f8fafc;
  --lumen-surface: #ffffff;
  
  --lumen-primary: #0284c7;
  --lumen-primary-hover: #0369a1;
  --lumen-primary-glow: rgba(2, 132, 199, 0.35);
  --lumen-accent: #38bdf8;
  --lumen-accent-warm: #f59e0b;
  --lumen-indigo: #4f46e5;
  --lumen-border: rgba(255, 255, 255, 0.08);
  --lumen-border-strong: rgba(255, 255, 255, 0.16);
  --lumen-border-light: #e2e8f0;
  
  --lumen-text-main: #0f172a;
  --lumen-text-muted: #64748b;
  --lumen-text-dark-sub: #475569;
  
  --lumen-on-dark-title: #ffffff;
  --lumen-on-dark-body: #94a3b8;
  --lumen-on-dark-muted: #64748b;
  
  --lumen-font-sans: 'Noto Sans JP', 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --lumen-font-display: 'Plus Jakarta Sans', 'Noto Sans JP', sans-serif;
  
  --lumen-radius-sm: 8px;
  --lumen-radius-md: 14px;
  --lumen-radius-lg: 22px;
  --lumen-radius-xl: 32px;
  
  --lumen-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --lumen-shadow-md: 0 8px 24px rgba(0, 0, 0, 0.12);
  --lumen-shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.22);
  --lumen-shadow-glow: 0 0 40px rgba(2, 132, 199, 0.25);
  
  --lumen-transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  --lumen-container: 1240px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--lumen-font-sans);
  background-color: var(--lumen-bg);
  color: var(--lumen-on-dark-body);
  line-height: 1.8;
  letter-spacing: 0.02em;
  overflow-x: hidden;
}

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

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

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* Container */
.lumen-container {
  width: 100%;
  max-width: var(--lumen-container);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* Typography Helpers */
.lumen-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(2, 132, 199, 0.12);
  color: var(--lumen-accent);
  border: 1px solid rgba(56, 189, 248, 0.25);
}

.lumen-section-header {
  text-align: center;
  max-width: 840px;
  margin: 0 auto 56px auto;
}

.lumen-section-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--lumen-on-dark-title);
  line-height: 1.35;
  margin-top: 16px;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.lumen-section-title.light-text {
  color: var(--lumen-text-main);
}

.lumen-section-subtitle {
  font-size: 1.0625rem;
  color: var(--lumen-on-dark-body);
  line-height: 1.85;
}

.lumen-section-subtitle.light-text {
  color: var(--lumen-text-muted);
}

/* Buttons */
.lumen-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  border-radius: var(--lumen-radius-md);
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--lumen-transition);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.lumen-btn-primary {
  background: linear-gradient(135deg, #0284c7 0%, #2563eb 100%);
  color: #ffffff;
  box-shadow: 0 8px 24px rgba(2, 132, 199, 0.35);
}

.lumen-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(2, 132, 199, 0.5);
  color: #ffffff;
}

.lumen-btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: #ffffff;
  border-color: var(--lumen-border-strong);
  backdrop-filter: blur(12px);
}

.lumen-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: var(--lumen-accent);
  color: #ffffff;
  transform: translateY(-2px);
}

.lumen-btn-sm {
  padding: 10px 20px;
  font-size: 0.875rem;
  border-radius: var(--lumen-radius-sm);
}

.lumen-btn-block {
  width: 100%;
}/* ===================================================================
   SIGNATURE EFFECT: AURORA MESH GRADIENT & AMBIENCE
   =================================================================== */
.lumen-fx-aurora {
  position: relative;
}

.lumen-aurora-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.lumen-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.32;
  animation: lumenAuroraFloat 18s ease-in-out infinite alternate;
}

.lumen-blob-1 {
  top: -10%;
  left: 10%;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, #0284c7 0%, rgba(37, 99, 235, 0) 70%);
}

.lumen-blob-2 {
  top: 20%;
  right: -5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #4f46e5 0%, rgba(79, 70, 229, 0) 70%);
  animation-duration: 22s;
  animation-delay: -5s;
}

.lumen-blob-3 {
  bottom: 10%;
  left: 25%;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, #06b6d4 0%, rgba(6, 182, 212, 0) 70%);
  animation-duration: 26s;
  animation-delay: -10s;
}

@keyframes lumenAuroraFloat {
  0% { transform: translate(0, 0) scale(1) rotate(0deg); }
  50% { transform: translate(60px, 40px) scale(1.12) rotate(45deg); }
  100% { transform: translate(-40px, 80px) scale(0.92) rotate(90deg); }
}

@media (prefers-reduced-motion: reduce) {
  .lumen-blob {
    animation: none !important;
    filter: blur(50px);
  }
}

/* Header */
.lumen-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(7, 13, 24, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--lumen-border);
  transition: var(--lumen-transition);
}

.lumen-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.lumen-nav-logo img {
  height: 44px;
  width: auto;
}

.lumen-nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.lumen-nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--lumen-on-dark-body);
}

.lumen-nav-link:hover {
  color: #ffffff;
}

.lumen-mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: #ffffff;
  cursor: pointer;
  padding: 8px;
}

/* Reading Progress Line */
.lumen-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, #38bdf8, #2563eb);
  z-index: 101;
  width: 0%;
  transition: width 0.1s ease-out;
}/* ===================================================================
   BENTO HERO & BENTO TILES
   =================================================================== */
.lumen-hero-section {
  position: relative;
  padding: 80px 0 100px 0;
  z-index: 1;
}

.lumen-bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.lumen-bento-card {
  background: var(--lumen-bg-card);
  border: 1px solid var(--lumen-border);
  border-radius: var(--lumen-radius-xl);
  padding: 36px;
  position: relative;
  overflow: hidden;
  transition: var(--lumen-transition);
  display: flex;
  flex-direction: column;
}

.lumen-bento-card:hover {
  border-color: rgba(56, 189, 248, 0.35);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
  transform: translateY(-3px);
}

/* Hero Bento Item Layouts */
.lumen-bento-main {
  grid-column: span 8;
  padding: 48px;
  background: linear-gradient(145deg, #0e1a2f 0%, #132442 100%);
  border-color: rgba(56, 189, 248, 0.2);
}

.lumen-hero-h1 {
  font-size: 2.85rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1.25;
  margin: 20px 0;
  letter-spacing: -0.02em;
}

.lumen-hero-h1 span {
  background: linear-gradient(135deg, #38bdf8 0%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.lumen-hero-lead {
  font-size: 1.125rem;
  color: var(--lumen-on-dark-body);
  line-height: 1.9;
  margin-bottom: 32px;
}

.lumen-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 36px;
}

.lumen-trust-strip {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--lumen-border);
  font-size: 0.875rem;
  color: var(--lumen-on-dark-muted);
}

.lumen-trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lumen-trust-item svg {
  color: var(--lumen-accent);
  flex-shrink: 0;
}

.lumen-bento-side {
  grid-column: span 4;
  justify-content: space-between;
  background: linear-gradient(180deg, #101e38 0%, #0c172a 100%);
}

.lumen-metric-highlight {
  padding: 24px;
  background: rgba(2, 132, 199, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.2);
  border-radius: var(--lumen-radius-lg);
  margin-top: 20px;
}

.lumen-metric-num {
  font-size: 2.75rem;
  font-weight: 900;
  color: #38bdf8;
  font-family: var(--lumen-font-display);
  line-height: 1;
}

.lumen-metric-label {
  font-size: 0.875rem;
  color: #cbd5e1;
  margin-top: 8px;
  font-weight: 500;
}

.lumen-bento-tile-sm {
  grid-column: span 4;
}

.lumen-bento-tile-md {
  grid-column: span 6;
}

.lumen-bento-tile-lg {
  grid-column: span 8;
}

.lumen-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--lumen-radius-md);
  background: rgba(2, 132, 199, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--lumen-accent);
  margin-bottom: 20px;
}

.lumen-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 12px;
  line-height: 1.4;
}

.lumen-card-desc {
  font-size: 0.9375rem;
  color: var(--lumen-on-dark-body);
  line-height: 1.75;
}

.lumen-card-micro-list {
  margin-top: 18px;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.875rem;
  color: #cbd5e1;
}

.lumen-card-micro-list li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lumen-card-micro-list li svg {
  color: var(--lumen-accent);
  flex-shrink: 0;
}/* ===================================================================
   SECTIONS: PROBLEM, COMPARISON, TIMELINE, SCENARIOS
   =================================================================== */
.lumen-section-dark {
  padding: 100px 0;
  position: relative;
  background: var(--lumen-bg);
}

.lumen-section-alt {
  padding: 100px 0;
  position: relative;
  background: #0a1322;
}

.lumen-section-light {
  padding: 100px 0;
  position: relative;
  background: var(--lumen-bg-light);
  color: var(--lumen-text-main);
}

/* Problem Grid */
.lumen-problem-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.lumen-problem-card {
  background: #0f1c32;
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: var(--lumen-radius-lg);
  padding: 28px;
  position: relative;
}

.lumen-problem-tag {
  color: #f87171;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  display: block;
}

/* Comparison Table */
.lumen-table-wrapper {
  background: var(--lumen-bg-card);
  border: 1px solid var(--lumen-border);
  border-radius: var(--lumen-radius-xl);
  overflow-x: auto;
  box-shadow: var(--lumen-shadow-lg);
}

.lumen-compare-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  min-width: 680px;
}

.lumen-compare-table th, .lumen-compare-table td {
  padding: 22px 28px;
  border-bottom: 1px solid var(--lumen-border);
}

.lumen-compare-table th {
  font-size: 1rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.02);
  color: #ffffff;
}

.lumen-compare-table th.highlight, .lumen-compare-table td.highlight {
  background: rgba(2, 132, 199, 0.08);
  border-left: 2px solid var(--lumen-primary);
  border-right: 2px solid var(--lumen-primary);
  color: #f1f5f9;
  font-weight: 600;
}

/* Process Timeline */
.lumen-timeline-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.lumen-timeline-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 28px;
  background: var(--lumen-bg-card);
  border: 1px solid var(--lumen-border);
  border-radius: var(--lumen-radius-lg);
  padding: 32px;
  transition: var(--lumen-transition);
}

.lumen-timeline-item:hover {
  border-color: var(--lumen-accent);
  transform: translateX(6px);
}

.lumen-timeline-badge {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, #0284c7, #2563eb);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 800;
  font-size: 1.25rem;
  font-family: var(--lumen-font-display);
}

/* Scenario Cards */
.lumen-scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.lumen-scenario-card {
  background: var(--lumen-bg-card);
  border: 1px solid var(--lumen-border);
  border-radius: var(--lumen-radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.lumen-scenario-img {
  height: 200px;
  width: 100%;
  object-fit: cover;
}

.lumen-scenario-body {
  padding: 28px;
  flex-grow: 1;
}

.lumen-scenario-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 4px;
  background: rgba(56, 189, 248, 0.12);
  color: var(--lumen-accent);
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 12px;
}/* ===================================================================
   INTERACTIVE MINI-QUIZ & TESTIMONIALS & FAQ & FORM & FOOTER
   =================================================================== */
/* Interactive Quiz */
.lumen-quiz-container {
  background: linear-gradient(145deg, #0e1b30 0%, #152744 100%);
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--lumen-radius-xl);
  padding: 48px;
  max-width: 860px;
  margin: 0 auto;
  box-shadow: var(--lumen-shadow-lg);
}

.lumen-quiz-q {
  margin-bottom: 32px;
}

.lumen-quiz-q-title {
  font-size: 1.1875rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 16px;
}

.lumen-quiz-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.lumen-quiz-opt {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--lumen-border);
  padding: 14px 18px;
  border-radius: var(--lumen-radius-md);
  color: #e2e8f0;
  cursor: pointer;
  transition: var(--lumen-transition);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9375rem;
  text-align: left;
}

.lumen-quiz-opt:hover, .lumen-quiz-opt.active {
  background: rgba(2, 132, 199, 0.2);
  border-color: var(--lumen-accent);
  color: #ffffff;
}

.lumen-quiz-result {
  display: none;
  padding: 28px;
  border-radius: var(--lumen-radius-lg);
  background: rgba(2, 132, 199, 0.12);
  border: 1px solid var(--lumen-accent);
  margin-top: 24px;
}

/* Testimonials */
.lumen-testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.lumen-testi-card {
  background: var(--lumen-bg-card);
  border: 1px solid var(--lumen-border);
  border-radius: var(--lumen-radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.lumen-testi-quote {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: #cbd5e1;
  margin-bottom: 24px;
  font-style: italic;
}

.lumen-testi-author {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lumen-testi-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--lumen-primary);
}

.lumen-testi-name {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #ffffff;
}

.lumen-testi-role {
  font-size: 0.75rem;
  color: var(--lumen-on-dark-muted);
}

/* FAQ Accordion */
.lumen-faq-wrapper {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.lumen-faq-item {
  background: var(--lumen-bg-card);
  border: 1px solid var(--lumen-border);
  border-radius: var(--lumen-radius-md);
  overflow: hidden;
  transition: var(--lumen-transition);
}

.lumen-faq-btn {
  width: 100%;
  padding: 22px 28px;
  text-align: left;
  background: none;
  border: none;
  color: #ffffff;
  font-weight: 700;
  font-size: 1.0625rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.lumen-faq-btn svg {
  transition: transform 0.3s ease;
  color: var(--lumen-accent);
  flex-shrink: 0;
}

.lumen-faq-item.open .lumen-faq-btn svg {
  transform: rotate(180deg);
}

.lumen-faq-ans {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out;
  padding: 0 28px;
  color: var(--lumen-on-dark-body);
  font-size: 0.9375rem;
  line-height: 1.85;
}

.lumen-faq-item.open .lumen-faq-ans {
  padding-bottom: 24px;
}

/* Form Section */
.lumen-form-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  background: var(--lumen-bg-card);
  border: 1px solid var(--lumen-border-strong);
  border-radius: var(--lumen-radius-xl);
  padding: 56px;
  box-shadow: var(--lumen-shadow-lg);
}

.lumen-form-sidebar {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.lumen-form-box {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.lumen-input-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.lumen-input-group label {
  font-size: 0.875rem;
  font-weight: 700;
  color: #f1f5f9;
}

.lumen-input-group label .req {
  color: #f87171;
  margin-left: 4px;
}

.lumen-input-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.lumen-input, .lumen-textarea {
  width: 100%;
  padding: 14px 18px;
  background: rgba(7, 13, 24, 0.7);
  border: 1px solid var(--lumen-border-strong);
  border-radius: var(--lumen-radius-md);
  color: #ffffff;
  font-size: 0.9375rem;
  transition: var(--lumen-transition);
}

.lumen-input:focus, .lumen-textarea:focus {
  outline: none;
  border-color: var(--lumen-accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

.lumen-consent-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.8125rem;
  color: #cbd5e1;
  cursor: pointer;
  line-height: 1.6;
}

.lumen-consent-label a {
  color: var(--lumen-accent);
  text-decoration: underline;
}

.lumen-form-status {
  padding: 16px 20px;
  border-radius: var(--lumen-radius-md);
  display: none;
  font-size: 0.9375rem;
  line-height: 1.6;
}

.lumen-form-status.success {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid #10b981;
  color: #6ee7b7;
}

.lumen-form-status.error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid #ef4444;
  color: #fca5a5;
}

/* Footer */
.lumen-footer {
  background: #050a12;
  border-top: 1px solid var(--lumen-border);
  padding: 80px 0 40px 0;
  font-size: 0.875rem;
}

.lumen-footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 56px;
}

.lumen-footer-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.lumen-footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  color: var(--lumen-on-dark-muted);
}

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

.lumen-footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--lumen-on-dark-muted);
  font-size: 0.8125rem;
}

/* Cookie Banner */
.lumen-cookie-banner {
  position: fixed;
  bottom: 24px;
  left: 24px;
  right: 24px;
  max-width: 580px;
  background: rgba(14, 26, 47, 0.96);
  border: 1px solid rgba(56, 189, 248, 0.3);
  backdrop-filter: blur(20px);
  border-radius: var(--lumen-radius-lg);
  padding: 24px;
  z-index: 1000;
  box-shadow: var(--lumen-shadow-lg);
  display: none;
}

.lumen-cookie-text {
  font-size: 0.875rem;
  color: #cbd5e1;
  line-height: 1.65;
  margin-bottom: 16px;
}

.lumen-cookie-actions {
  display: flex;
  gap: 12px;
}

/* Responsive */
@media (max-width: 1024px) {
  .lumen-bento-main { grid-column: span 12; }
  .lumen-bento-side { grid-column: span 12; }
  .lumen-bento-tile-sm { grid-column: span 6; }
  .lumen-bento-tile-md { grid-column: span 6; }
  .lumen-bento-tile-lg { grid-column: span 12; }
  .lumen-problem-grid { grid-template-columns: repeat(2, 1fr); }
  .lumen-scenario-grid { grid-template-columns: 1fr; }
  .lumen-testi-grid { grid-template-columns: 1fr; }
  .lumen-form-layout { grid-template-columns: 1fr; padding: 36px; }
  .lumen-footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .lumen-nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: #070d18;
    flex-direction: column;
    padding: 32px 24px;
    gap: 20px;
    border-bottom: 1px solid var(--lumen-border);
    display: none;
  }
  .lumen-nav-menu.active { display: flex; }
  .lumen-mobile-toggle { display: block; }
  .lumen-hero-h1 { font-size: 2.15rem; }
  .lumen-bento-tile-sm, .lumen-bento-tile-md { grid-column: span 12; }
  .lumen-problem-grid { grid-template-columns: 1fr; }
  .lumen-quiz-options { grid-template-columns: 1fr; }
  .lumen-input-row { grid-template-columns: 1fr; }
  .lumen-footer-grid { grid-template-columns: 1fr; }
}