/* ===== Design System ===== */
:root {
  /* Colors */
  --color-primary: #6366f1;
  --color-primary-light: #818cf8;
  --color-primary-dark: #4f46e5;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-dark: #0f172a;
  --color-light: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  
  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-dark);
  background-color: var(--color-light);
  overflow-x: hidden;
}

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

a:hover {
  color: var(--color-primary-dark);
}

/* ===== Typography ===== */
h1 {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  line-height: var(--line-height-tight);
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
}

h2 {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  line-height: var(--line-height-tight);
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-lg);
}

h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  line-height: var(--line-height-tight);
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

h4 {
  font-size: var(--font-size-lg);
  font-weight: 700;
  line-height: var(--line-height-normal);
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-700);
  line-height: var(--line-height-relaxed);
}

ul, ol {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

li {
  margin-bottom: var(--spacing-sm);
  color: var(--color-gray-700);
  line-height: var(--line-height-relaxed);
}

/* ===== New Components ===== */

/* Differentiation Grid */
.differentiation {
  background: linear-gradient(135deg, rgba(236, 72, 153, 0.05), rgba(99, 102, 241, 0.05));
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl) var(--spacing-xl);
}

.differentiation-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.diff-card {
  background: white;
  padding: var(--spacing-lg);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
}

.diff-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.diff-icon {
  font-size: var(--font-size-3xl);
  display: inline-block;
  margin-bottom: var(--spacing-md);
}

.diff-card h3 {
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
}

.diff-card p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: var(--line-height-relaxed);
}

/* Screenshots Section */
.screenshots-section {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.screenshot-placeholder {
  aspect-ratio: 9 / 18;
  background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.screenshot-placeholder svg {
  width: 100%;
  height: 100%;
}

/* Status Visualization */
.status-visualization {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.status-item {
  background: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 2px solid var(--color-gray-200);
  text-align: center;
  transition: all var(--transition-normal);
}

.status-item:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.status-badge {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-md);
}

.badge-ready {
  background-color: rgba(16, 185, 129, 0.1);
  color: #059669;
  border: 1px solid #10b981;
}

.badge-warning {
  background-color: rgba(245, 158, 11, 0.1);
  color: #d97706;
  border: 1px solid #f59e0b;
}

.badge-empty {
  background-color: rgba(239, 68, 68, 0.1);
  color: #dc2626;
  border: 1px solid #ef4444;
}

.status-desc {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  line-height: var(--line-height-relaxed);
}

/* FAQ Accordion */
.faq-item {
  cursor: pointer;
  border-bottom: 1px solid var(--color-gray-200);
  padding: var(--spacing-lg) 0;
  list-style: none;
}

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

.faq-item summary {
  font-weight: 600;
  color: var(--color-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color var(--transition-fast);
  user-select: none;
}

.faq-item summary:hover {
  color: var(--color-primary);
}

.faq-item[open] > summary {
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.faq-item[open] > summary::after {
  content: '▼';
  font-size: var(--font-size-sm);
}

.faq-item > summary::after {
  content: '▶';
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  transition: transform var(--transition-fast);
}

.faq-item p {
  margin: 0;
  padding-top: var(--spacing-md);
  color: var(--color-gray-700);
  line-height: var(--line-height-relaxed);
}

/* ===== Header & Navigation ===== */
header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  justify-content: center;
  align-items: center;
}

.logo {
  font-size: 1.75rem;
  font-weight: 800;
  color: white;
  letter-spacing: 0.5px;
  text-decoration: none;
  transition: color var(--transition-fast);
}

.logo:hover {
  color: rgba(255, 255, 255, 0.8);
}

/* ===== Main Container ===== */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-2xl) var(--spacing-lg);
}

section {
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid rgba(236, 72, 153, 0.08);
}

section:last-child {
  border-bottom: none;
}

/* ===== Hero Section ===== */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #ec4899 100%);
  color: white;
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl) var(--spacing-xl);
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.hero h1 {
  font-size: var(--font-size-4xl);
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  color: white;
  position: relative;
  z-index: 1;
}

.hero p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xl);
  color: rgba(255, 255, 255, 0.95);
  position: relative;
  z-index: 1;
}

/* ===== Buttons ===== */
.cta-button {
  display: inline-block;
  background-color: white;
  color: var(--color-primary);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-lg);
  font-weight: 600;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-md);
  border: 2px solid transparent;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.cta-button:active {
  transform: translateY(0);
}

.secondary-button {
  display: inline-block;
  background-color: var(--color-primary);
  color: white;
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius-lg);
  font-weight: 600;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-md);
}

.secondary-button:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ===== App Store Links ===== */
.app-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin: var(--spacing-xl) 0;
  flex-wrap: wrap;
}

.app-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.app-link:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.app-store-badge {
  height: 48px;
  width: auto;
  max-width: 131px;
  display: block;
}

/* ===== Content Sections ===== */
.content-block {
  background-color: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  margin-bottom: var(--spacing-xl);
}

/* ===== Features Grid ===== */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin: var(--spacing-xl) 0;
}

.feature-card {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), #8b5cf6);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-icon {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-md);
  display: inline-block;
}

.feature-card h3 {
  margin-top: 0;
  color: var(--color-dark);
}

.feature-card p {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  margin: 0;
}

/* ===== Use Case / Scenario Cards ===== */
.scenario-card {
  background: white;
  border: 2px solid var(--color-gray-200);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
}

.scenario-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.scenario-card .emoji {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
}

.scenario-card h4 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
  color: var(--color-dark);
}

.scenario-card p {
  font-size: var(--font-size-sm);
  margin: 0;
}

.scenarios {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

/* ===== Status Badges ===== */
.status-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-md);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.status-badge.ready {
  background-color: var(--color-success);
  color: white;
}

.status-badge.warning {
  background-color: var(--color-warning);
  color: white;
}

.status-badge.empty {
  background-color: var(--color-danger);
  color: white;
}

/* ===== Screenshots ===== */
.screenshots {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

.screenshot {
  width: 100%;
  max-width: 250px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: transform var(--transition-normal);
}

.screenshot:hover {
  transform: scale(1.05);
}

.screenshot img {
  width: 100%;
  height: auto;
  display: block;
}

/* ===== Form Container ===== */
.form-container {
  background-color: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  max-width: 800px;
  margin: 0 auto;
}

.form-container iframe {
  width: 100%;
  height: 700px;
  border: none;
  border-radius: var(--radius-lg);
}

/* ===== Timeline / Steps ===== */
.steps {
  position: relative;
  padding: var(--spacing-xl) 0;
}

.step {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-2xl);
  position: relative;
}

.step-number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary), #8b5cf6);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-lg);
}

.step-content h3 {
  margin-top: 0;
}

.step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 20px;
  top: 40px;
  width: 2px;
  height: calc(100% + var(--spacing-lg));
  background: var(--color-gray-200);
}

/* ===== Steps with Screenshots ===== */
.steps-with-screenshots {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2xl);
}

.step-with-screenshot {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
  padding: var(--spacing-xl);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.02), rgba(139, 92, 246, 0.02));
  border-radius: var(--radius-lg);
  border: 1px solid rgba(99, 102, 241, 0.1);
}

.step-with-screenshot:nth-child(even) {
  direction: rtl;
}

.step-with-screenshot:nth-child(even) > * {
  direction: ltr;
}

.step-with-screenshot .step-content {
  display: block;
}

.step-with-screenshot .step-number {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary), #8b5cf6);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  font-size: var(--font-size-lg);
  margin-right: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.step-with-screenshot h3 {
  display: inline;
  margin-top: 0;
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
}

.step-with-screenshot p {
  margin: 0;
  color: var(--color-gray-600);
  line-height: var(--line-height-relaxed);
}

.step-summary {
  font-weight: 600;
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-xs) !important;
}

.step-detail {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  margin-bottom: 0 !important;
}

.step-screenshot {
  display: flex;
  justify-content: center;
  align-items: center;
}

.step-screenshot svg,
.step-screenshot img {
  max-width: 100%;
  height: auto;
  width: 100%;
  max-width: 300px;
}

/* ===== Comparison Table ===== */
table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing-lg) 0;
  background-color: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

table thead {
  background: linear-gradient(135deg, var(--color-primary), #8b5cf6);
  color: white;
}

table th {
  padding: var(--spacing-lg);
  font-weight: 700;
  text-align: center;
}

table th:first-child {
  text-align: left;
}

table td {
  padding: var(--spacing-lg);
  text-align: center;
  border-bottom: 1px solid var(--color-gray-200);
}

table td:first-child {
  text-align: left;
  font-weight: 500;
}

table tbody tr:hover {
  background-color: var(--color-gray-100);
}

/* ===== Footer ===== */
footer {
  background-color: var(--color-dark);
  color: white;
  padding: var(--spacing-xl) var(--spacing-lg);
  text-align: center;
  margin-top: var(--spacing-2xl);
}

footer p {
  margin-bottom: var(--spacing-sm);
  color: rgba(255, 255, 255, 0.8);
}

footer a {
  color: var(--color-primary-light);
}

footer a:hover {
  color: white;
}

/* ===== Responsive Design - Mobile First ===== */
@media (max-width: 768px) {
  :root {
    --font-size-xs: 0.7rem;
    --font-size-sm: 0.8rem;
    --font-size-base: 0.9rem;
    --font-size-lg: 1rem;
    --font-size-xl: 1.1rem;
    --font-size-2xl: 1.3rem;
    --font-size-3xl: 1.6rem;
    --font-size-4xl: 2rem;
    
    --spacing-md: 0.75rem;
    --spacing-lg: 1rem;
    --spacing-xl: 1.25rem;
    --spacing-2xl: 1.5rem;
  }

  h1 {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
  }

  h2 {
    font-size: var(--font-size-2xl);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
  }

  h3 {
    font-size: var(--font-size-lg);
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
  }

  nav {
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
  }

  .logo {
    font-size: var(--font-size-xl);
  }

  .nav-links {
    gap: var(--spacing-md);
    flex-direction: column;
    text-align: center;
  }

  .hero {
    padding: var(--spacing-lg) var(--spacing-md);
    margin-bottom: var(--spacing-lg);
  }

  .hero h1 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
  }

  .hero p {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-lg);
  }

  main {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .content-block {
    padding: var(--spacing-lg) var(--spacing-md);
    margin-bottom: var(--spacing-lg);
  }

  .features {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .scenarios {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .scenario-card {
    padding: var(--spacing-md);
  }

  .app-links {
    gap: var(--spacing-sm);
    margin: var(--spacing-lg) 0;
  }

  .app-link {
    width: 100%;
    justify-content: center;
    min-height: auto;
    display: flex;
  }

  .app-store-badge {
    height: 48px;
    width: auto;
    max-width: 100%;
  }

  .screenshots {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .screenshot {
    max-width: 100%;
  }

  .form-container {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  .form-container iframe {
    height: 600px;
  }

  .steps {
    padding: var(--spacing-lg) 0;
  }

  .step {
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
  }

  .step-number {
    width: 36px;
    height: 36px;
    font-size: var(--font-size-base);
  }

  .step-content h3 {
    font-size: var(--font-size-lg);
  }

  .step:not(:last-child)::after {
    left: 18px;
    height: calc(100% + var(--spacing-md));
  }

  .step-with-screenshot {
    grid-template-columns: 1fr 1fr;
    padding: var(--spacing-lg);
    gap: var(--spacing-lg);
  }

  .step-with-screenshot:nth-child(even) {
    direction: rtl;
  }

  .step-with-screenshot:nth-child(even) > * {
    direction: ltr;
  }

  .step-screenshot svg {
    max-width: 280px;
  }

  footer {
    padding: var(--spacing-lg) var(--spacing-md);
  }

  footer p {
    font-size: var(--font-size-sm);
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-xs: 0.7rem;
    --font-size-sm: 0.9rem;
    --font-size-base: 0.95rem;
    --font-size-lg: 1.05rem;
    --font-size-xl: 1.2rem;
    --font-size-2xl: 1.35rem;
    --font-size-3xl: 1.65rem;
    --font-size-4xl: 2rem;
    
    --spacing-md: 0.8rem;
    --spacing-lg: 1rem;
    --spacing-xl: 1.25rem;
    --spacing-2xl: 1.5rem;
  }

  body {
    line-height: 1.6;
  }

  h1 {
    font-size: 1.65rem;
    line-height: 1.3;
  }

  h2 {
    font-size: 1.3rem;
    line-height: 1.4;
  }

  h3 {
    font-size: 1.05rem;
    line-height: 1.35;
  }

  h4 {
    font-size: var(--font-size-base);
    line-height: 1.35;
  }

  p {
    font-size: var(--font-size-base);
    line-height: 1.65;
  }

  nav {
    padding: 0.5rem 1rem;
    gap: 0.75rem;
    position: relative;
    justify-content: center;
  }

  .logo {
    font-size: 1rem;
    font-weight: 800;
  }

  .hero {
    padding: 1.2rem 1rem;
    margin-bottom: 1rem;
  }

  .hero h1 {
    font-size: 1.4rem;
    line-height: 1.35;
    margin-top: var(--spacing-lg);
    margin-bottom: 1rem;
  }

  .hero-subtext {
    font-size: 0.95rem;
    margin-bottom: 1rem;
    line-height: 1.5;
  }

  main {
    padding: 1rem;
  }

  .content-block {
    padding: 1rem;
    margin: 1.5rem 0;
  }

  .form-container iframe {
    height: 500px;
  }

  .feature-card {
    padding: 1.2rem 1.2rem 1rem 1.2rem;
    margin-bottom: 0.75rem;
  }

  .feature-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
  }

  .feature-card h3 {
    font-size: 1.05rem;
    margin-bottom: 0.5rem;
  }

  .feature-card p {
    font-size: 0.95rem;
    line-height: 1.6;
  }

  .scenario-card {
    padding: 1.2rem 1.2rem 1rem 1.2rem;
    margin-bottom: 0.75rem;
  }

  .scenario-card h4 {
    font-size: 1.05rem;
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
    line-height: 1.35;
  }

  .scenario-card p {
    font-size: 0.95rem;
    line-height: 1.6;
  }

  .step-number {
    width: 44px;
    height: 44px;
    font-size: 0.95rem;
    min-height: 44px;
  }

  .step {
    gap: 1rem;
  }

  .step-content h3 {
    font-size: 1.05rem;
  }

  .step-content p {
    font-size: 0.95rem;
    line-height: 1.6;
  }

  .step-with-screenshot {
    grid-template-columns: 1fr;
    gap: 1.2rem;
    padding: 1rem;
  }

  .step-with-screenshot:nth-child(even) {
    direction: ltr;
  }

  .step-with-screenshot .step-content {
    gap: var(--spacing-sm);
  }

  .step-with-screenshot h3 {
    font-size: 1.05rem;
  }

  .step-screenshot {
    width: 100%;
  }

  .step-screenshot svg {
    max-width: 250px;
  }

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

  .screenshots-section {
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-top: 0.5rem;
  }

  .screenshot-placeholder {
    width: 100%;
    max-width: 280px;
    margin: 0 auto;
  }

  .screenshot-placeholder svg {
    width: 100%;
    height: auto;
  }

  .status-visualization {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .status-item {
    padding: 1rem;
  }

  .status-badge {
    font-size: 0.95rem;
    padding: 0.6rem 0.8rem;
  }

  .status-desc {
    font-size: 0.9rem;
    line-height: 1.5;
  }

  table {
    font-size: 0.9rem;
    width: 100%;
    display: block;
    overflow-x: auto;
  }

  table tbody {
    display: block;
    overflow-x: auto;
  }

  table th,
  table td {
    padding: 0.75rem;
    text-align: left;
  }

  table th {
    font-size: 0.95rem;
  }

  .cta-button {
    font-size: 0.95rem;
    padding: 1rem 1.5rem;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }

  .app-links {
    margin: 1.2rem 0;
  }

  .app-link {
    width: 100%;
    justify-content: center;
    min-height: auto;
    display: flex;
  }

  .app-store-badge {
    height: 48px;
    width: auto;
    max-width: 100%;
  }

  .faq-item summary {
    font-size: 0.95rem;
    padding: 1rem;
    cursor: pointer;
    min-height: 44px;
    display: flex;
    align-items: center;
  }

  .faq-item p {
    font-size: 0.95rem;
    line-height: 1.65;
    padding: 0.75rem 1rem 1rem 1rem;
  }

  footer {
    padding: 1rem;
    font-size: 0.85rem;
  }

  footer p {
    line-height: 1.6;
    margin: 0.5rem 0;
  }
}
  }

  details summary {
    font-size: var(--font-size-base);
    padding: var(--spacing-md);
  }

  details p {
    font-size: var(--font-size-base);
    padding: var(--spacing-md);
  }
}