/* Koemoji - Security-Focused Voice Transcription Tool */

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.7;
    color: #2C2C2C;
    background: #FFFFFF;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    font-feature-settings: "palt" 1;
    letter-spacing: 0.02em;
    font-size: 16px;
}

/* ===== Typography Enhancement ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: 0.01em;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

p {
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.02);
}

.section-description,
.security-point-card p,
.industry-card p,
.pricing-features li {
    font-size: 1.1rem;
    line-height: 1.8;
    letter-spacing: 0.03em;
}

/* ===== Design System ===== */
:root {
    /* Koemoji Brand Colors - Security Theme */
    --koemoji-primary: #3B82F6;      /* Blue for trust/security */
    --koemoji-secondary: #10B981;     /* Green for safety */
    --koemoji-accent: #8B5CF6;        /* Purple for tech */
    --koemoji-warning: #F59E0B;       /* Orange for warnings */
    --koemoji-dark: #1F2937;
    --koemoji-light: #F3F4F6;
    --koemoji-white: #FFFFFF;

    /* Typography */
    --font-display: 'Playfair Display', serif;
    --font-body: 'Noto Sans JP', sans-serif;
    --font-ui: 'Inter', sans-serif;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 3rem;
    --space-xl: 4rem;
    --space-2xl: 6rem;
    --space-3xl: 8rem;

    /* Animations */
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Shadows */
    --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-medium: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-large: 0 8px 24px rgba(0, 0, 0, 0.12);
}

/* ===== Hero Section ===== */
.hero-section {
    height: 100vh;
    width: 100vw;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, var(--koemoji-dark) 0%, #374151 100%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 50%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    max-width: 900px;
    padding: 0 var(--space-md);
}

.hero-logo-container {
    margin-bottom: var(--space-lg);
    opacity: 0;
    animation: fadeInUp 1s var(--ease-smooth) 0.3s forwards;
}

.hero-icon {
    font-size: 5rem;
    color: var(--koemoji-primary);
    filter: drop-shadow(0 0 20px rgba(59, 130, 246, 0.5));
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1;
    margin-bottom: var(--space-md);
    color: #FFFFFF;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8);
    opacity: 0;
    animation: fadeInUp 1s var(--ease-smooth) 0.5s forwards;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 400;
    margin-bottom: var(--space-md);
    opacity: 0;
    animation: fadeInUp 1s var(--ease-smooth) 0.7s forwards;
}

.subtitle-line {
    display: inline-block;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.2rem);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
    opacity: 0;
    animation: fadeInUp 1s var(--ease-smooth) 0.9s forwards;
}

.hero-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 1s var(--ease-smooth) 1.1s forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* ===== Section ===== */
.section {
    padding: var(--space-2xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.section-description {
    font-size: 1.2rem;
    color: #6B7280;
    max-width: 700px;
    margin: 0 auto;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s var(--ease-smooth);
    cursor: pointer;
    border: none;
    font-family: var(--font-body);
}

.btn-primary {
    background: var(--koemoji-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    background: #2563EB;
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
}

.btn-secondary {
    background: white;
    color: #3B82F6;
    border: 2px solid #3B82F6;
}

.btn-secondary:hover {
    background: #3B82F6;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn-large {
    padding: 1.2rem 3rem;
    font-size: 1.2rem;
}

/* ===== Security Points Section ===== */
.security-points-section {
    background: var(--koemoji-light);
}

.security-points-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.security-point-card {
    background: white;
    padding: var(--space-xl);
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-soft);
    transition: all 0.3s var(--ease-smooth);
}

.security-point-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-large);
}

.security-point-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-md);
    background: linear-gradient(135deg, var(--koemoji-primary), var(--koemoji-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.security-point-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
    color: var(--koemoji-dark);
}

.security-point-benefit {
    margin-top: var(--space-md);
    padding: var(--space-sm);
    background: var(--koemoji-light);
    border-radius: 8px;
    color: var(--koemoji-primary);
    font-weight: 600;
}

/* ===== Problems Section ===== */
.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

.problem-card {
    background: white;
    padding: var(--space-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-medium);
}

.problem-card.before {
    border-left: 4px solid #EF4444;
}

.problem-card.after {
    border-left: 4px solid var(--koemoji-secondary);
}

.problem-card h3 {
    font-size: 1.8rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.problem-card ul {
    list-style: none;
}

.problem-card li {
    padding: var(--space-sm) 0;
    font-size: 1.1rem;
}

/* ===== AI Summary Section ===== */
.ai-summary-section {
    background: linear-gradient(135deg, #FEF3C7 0%, #FDE68A 100%);
}

.ai-modes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

.ai-mode-card {
    background: white;
    padding: var(--space-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-medium);
}

.ai-mode-card.local {
    border: 3px solid var(--koemoji-secondary);
}

.ai-mode-card.hybrid {
    border: 3px solid var(--koemoji-warning);
}

.ai-mode-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

.ai-mode-header h3 {
    font-size: 1.8rem;
    color: var(--koemoji-dark);
}

.badge {
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.badge.offline {
    background: var(--koemoji-secondary);
    color: white;
}

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

.ai-mode-description {
    font-size: 1.1rem;
    color: #6B7280;
    margin-bottom: var(--space-md);
}

.ai-mode-use-case h4 {
    font-size: 1.2rem;
    margin-bottom: var(--space-sm);
    color: var(--koemoji-dark);
}

.ai-mode-use-case ul {
    list-style: none;
}

.ai-mode-use-case li {
    padding: var(--space-xs) 0;
    padding-left: var(--space-md);
    position: relative;
}

.ai-mode-use-case li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--koemoji-primary);
    font-weight: bold;
}

.ai-summary-note {
    margin-top: var(--space-xl);
    padding: var(--space-xl);
    background: white;
    border-radius: 16px;
    border-left: 4px solid var(--koemoji-primary);
}

.ai-summary-note p {
    font-size: 1.1rem;
    line-height: 1.8;
}

/* ===== Industries Section ===== */
.industries-section {
    position: relative;
    background: var(--koemoji-dark);
    color: white;
}

.industries-section .section-title {
    color: white;
}

.industries-section .section-description {
    color: #D1D5DB;
}

.industries-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.1;
}

.industries-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.industries-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.industry-card {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--space-xl);
    border-radius: 16px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s var(--ease-smooth);
}

.industry-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.industry-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-primary);
}

.industry-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

/* ===== ROI Section ===== */
.roi-section {
    background: var(--koemoji-light);
}

.roi-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
    margin: var(--space-xl) 0;
}

.roi-card {
    background: white;
    padding: var(--space-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-medium);
}

.roi-card h3 {
    font-size: 1.8rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.roi-list {
    list-style: none;
    margin-bottom: var(--space-md);
}

.roi-list li {
    padding: var(--space-sm) 0;
    font-size: 1.1rem;
}

.roi-total {
    padding: var(--space-md);
    border-radius: 8px;
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
}

.roi-total.current {
    background: #FEE2E2;
    color: #DC2626;
}

.roi-total.improved {
    background: #D1FAE5;
    color: #059669;
}

.roi-result {
    margin-top: var(--space-xl);
    text-align: center;
}

.roi-savings {
    background: white;
    padding: var(--space-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-large);
}

.roi-savings h3 {
    font-size: 2rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.savings-amount {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--koemoji-secondary);
    margin-bottom: var(--space-sm);
}

.payback-period {
    font-size: 1.3rem;
    color: #6B7280;
}

/* ===== Pricing Section ===== */
.pricing-section {
    background: white;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

.pricing-card {
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow-medium);
    overflow: hidden;
    transition: all 0.3s var(--ease-smooth);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-large);
}

.pricing-card.featured {
    border: 3px solid var(--koemoji-primary);
}

.pricing-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--koemoji-primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.pricing-header {
    background: linear-gradient(135deg, var(--koemoji-dark), #374151);
    color: white;
    padding: var(--space-xl);
    text-align: center;
}

.pricing-header h3 {
    font-size: 1.8rem;
    margin-bottom: var(--space-sm);
}

.pricing-body {
    padding: var(--space-xl);
}

.pricing-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--koemoji-primary);
    text-align: center;
    margin-bottom: var(--space-xs);
}

.pricing-period {
    text-align: center;
    color: #6B7280;
    margin-bottom: var(--space-lg);
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--space-lg);
}

.pricing-features li {
    padding: var(--space-sm) 0;
    font-size: 1rem;
}

.pricing-use-case {
    background: var(--koemoji-light);
    padding: var(--space-md);
    border-radius: 12px;
    margin-bottom: var(--space-lg);
}

.pricing-use-case h4 {
    font-size: 1.1rem;
    margin-bottom: var(--space-sm);
    color: var(--koemoji-dark);
}

.pricing-use-case ul {
    list-style: none;
}

.pricing-use-case li {
    padding: var(--space-xs) 0;
    font-size: 0.95rem;
}

.pricing-btn {
    display: block;
    width: 100%;
    padding: 1rem;
    background: var(--koemoji-primary);
    color: white;
    text-align: center;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s var(--ease-smooth);
}

.pricing-btn:hover {
    background: #2563EB;
    transform: scale(1.02);
}

.pricing-note {
    margin-top: var(--space-xl);
    text-align: center;
    font-size: 1.1rem;
    color: #6B7280;
}

/* ===== Flow Section ===== */
.flow-timeline {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.flow-item {
    background: white;
    padding: var(--space-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-soft);
    text-align: center;
    position: relative;
}

.flow-week {
    background: var(--koemoji-primary);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: var(--space-md);
    font-weight: 600;
}

.flow-content h3 {
    font-size: 1.3rem;
    margin-bottom: var(--space-sm);
    color: var(--koemoji-dark);
}

/* ===== FAQ Section ===== */
.faq-section {
    background: var(--koemoji-light);
}

.faq-grid {
    display: grid;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.faq-item {
    background: white;
    padding: var(--space-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-soft);
}

.faq-item h3 {
    font-size: 1.3rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-primary);
}

.faq-item p {
    font-size: 1.1rem;
    color: #374151;
}

/* ===== Contact Section ===== */
.contact-section {
    background: white;
}

.contact-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
    margin: var(--space-xl) 0;
}

.contact-method {
    background: var(--koemoji-light);
    padding: var(--space-xl);
    border-radius: 16px;
    text-align: center;
}

.contact-method i {
    font-size: 3rem;
    color: var(--koemoji-primary);
    margin-bottom: var(--space-md);
}

.contact-method h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.contact-method a {
    color: var(--koemoji-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
}

.contact-method a:hover {
    text-decoration: underline;
}

.contact-note {
    margin-top: var(--space-sm);
    font-size: 0.95rem;
    color: #6B7280;
}

.contact-links {
    margin-top: var(--space-xl);
}

.contact-links h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.contact-links ul {
    list-style: none;
}

.contact-links li {
    margin: var(--space-sm) 0;
}

.contact-links a {
    color: var(--koemoji-primary);
    text-decoration: none;
    font-size: 1.1rem;
}

.contact-links a:hover {
    text-decoration: underline;
}

/* ===== Footer ===== */
.footer {
    background: var(--koemoji-dark);
    color: white;
    padding: var(--space-2xl) 0 var(--space-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.footer-logo-icon {
    font-size: 2.5rem;
    color: var(--koemoji-primary);
}

.footer-logo h3 {
    font-size: 1.8rem;
}

.footer-description {
    color: #9CA3AF;
    margin-bottom: var(--space-md);
}

.footer-parent-company {
    margin-top: var(--space-md);
}

.parent-company-link {
    color: var(--koemoji-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
}

.parent-company-link:hover {
    text-decoration: underline;
}

.footer-nav h4 {
    font-size: 1.2rem;
    margin-bottom: var(--space-md);
}

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

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    color: #9CA3AF;
    text-decoration: none;
    transition: color 0.3s var(--ease-smooth);
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-md);
    text-align: center;
    color: #9CA3AF;
}

.footer-bottom a {
    color: var(--koemoji-primary);
    text-decoration: none;
}

.footer-bottom a:hover {
    text-decoration: underline;
}

/* ===== Back to Top Button ===== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--koemoji-primary);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s var(--ease-smooth);
    z-index: 1000;
    box-shadow: var(--shadow-medium);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: #2563EB;
    transform: translateY(-5px);
}

/* ===== Download Page Specific ===== */
.download-section {
    background: var(--koemoji-light);
}

.download-card {
    background: white;
    padding: var(--space-xl);
    border-radius: 20px;
    box-shadow: var(--shadow-medium);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-xl);
    flex-wrap: wrap;
}

.download-info {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.download-icon {
    font-size: 4rem;
    color: var(--koemoji-primary);
}

.download-details h3 {
    font-size: 1.8rem;
    margin-bottom: var(--space-sm);
    color: var(--koemoji-dark);
}

.download-details p {
    color: #6B7280;
    font-size: 1.1rem;
}

.download-button {
    text-align: center;
}

.download-note {
    margin-top: var(--space-sm);
    font-size: 0.9rem;
    color: #6B7280;
}

/* Installation Steps */
.installation-steps {
    max-width: 900px;
    margin: 0 auto;
}

.step-card {
    background: white;
    padding: var(--space-xl);
    border-radius: 16px;
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-soft);
    display: flex;
    gap: var(--space-lg);
}

.step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--koemoji-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
}

.step-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.step-content p {
    font-size: 1.1rem;
    margin-bottom: var(--space-sm);
}

.step-note {
    margin-top: var(--space-md);
    padding: var(--space-md);
    background: #FEF3C7;
    border-left: 4px solid var(--koemoji-warning);
    border-radius: 8px;
    font-size: 1rem;
}

.code-block {
    background: var(--koemoji-dark);
    color: #10B981;
    padding: var(--space-md);
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    margin: var(--space-md) 0;
    font-size: 1.1rem;
}

.file-structure {
    background: var(--koemoji-light);
    padding: var(--space-md);
    border-radius: 8px;
    margin: var(--space-md) 0;
}

.file-structure h4 {
    margin-bottom: var(--space-sm);
    color: var(--koemoji-dark);
}

.file-structure ul {
    list-style: none;
    font-family: 'Courier New', monospace;
}

.file-structure li {
    padding: 0.25rem 0;
    color: #374151;
}

.file-note {
    color: #6B7280;
    font-size: 0.9rem;
    font-style: italic;
}

/* Usage Section - 新デザイン */
.usage-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.usage-card {
    background: white;
    border: 2px solid #E5E7EB;
    border-radius: 16px;
    padding: 35px 25px;
    text-align: center;
    transition: all 0.3s ease;
}

.usage-card:hover {
    border-color: #3B82F6;
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.1);
    transform: translateY(-5px);
}

.usage-icon {
    font-size: 3.5rem;
    color: #3B82F6;
    margin-bottom: 20px;
}

.usage-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #1F2937;
    font-weight: 600;
}

.usage-card > p {
    font-size: 1rem;
    color: #374151;
    line-height: 1.6;
    margin-bottom: 12px;
}

.usage-note {
    margin-top: 8px;
    font-size: 0.9rem;
    color: #6B7280;
    line-height: 1.6;
}

.usage-note a {
    color: #3B82F6;
    text-decoration: none;
    font-weight: 500;
}

.usage-note a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .usage-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .usage-card {
        padding: 30px 20px;
    }

    .usage-icon {
        font-size: 3rem;
    }
}

/* UI Mode Section - 新デザイン */
.ui-modes-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 40px;
}

.ui-mode-card {
    background: white;
    border: 2px solid #E5E7EB;
    border-radius: 16px;
    padding: 35px 25px;
    text-align: center;
    transition: all 0.3s ease;
}

.ui-mode-card:hover {
    border-color: #3B82F6;
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.1);
    transform: translateY(-5px);
}

.ui-mode-icon {
    font-size: 3.5rem;
    color: #3B82F6;
    margin-bottom: 20px;
}

.ui-mode-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #1F2937;
    font-weight: 600;
}

.ui-mode-card > p {
    font-size: 1rem;
    color: #374151;
    line-height: 1.6;
    margin-bottom: 20px;
}

.tui-keys {
    margin-top: 25px;
    padding: 20px;
    background: #F9FAFB;
    border-radius: 12px;
    text-align: left;
}

.tui-keys h4 {
    font-size: 1rem;
    margin-bottom: 12px;
    color: #1F2937;
    font-weight: 600;
}

.tui-keys ul {
    list-style: none;
}

.tui-keys li {
    padding: 6px 0;
    font-size: 0.95rem;
    color: #374151;
}

.tui-keys code {
    background: #1F2937;
    color: #3B82F6;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-weight: 600;
    font-family: 'Courier New', monospace;
}

@media (max-width: 768px) {
    .ui-modes-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .ui-mode-card {
        padding: 30px 20px;
    }

    .ui-mode-icon {
        font-size: 3rem;
    }
}

/* Troubleshooting Section */
.troubleshooting-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.trouble-card {
    background: white;
    padding: var(--space-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-soft);
}

.trouble-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--space-md);
    color: #DC2626;
}

.trouble-card p strong,
.trouble-card ul {
    margin-top: var(--space-md);
}

.trouble-card ul {
    list-style: none;
    padding-left: var(--space-md);
}

.trouble-card li {
    padding: var(--space-xs) 0;
    position: relative;
}

.trouble-card li::before {
    content: "→";
    position: absolute;
    left: -1rem;
    color: var(--koemoji-primary);
}

/* License Section */
.license-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--space-xl);
    margin: var(--space-xl) 0;
}

.license-card {
    background: white;
    padding: var(--space-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-medium);
}

.license-card.personal {
    border-left: 4px solid var(--koemoji-secondary);
}

.license-card.commercial {
    border-left: 4px solid var(--koemoji-primary);
}

.license-card h3 {
    font-size: 1.8rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.license-card p {
    font-size: 1.1rem;
    margin-bottom: var(--space-md);
    color: #6B7280;
}

.license-card ul {
    list-style: none;
    margin-bottom: var(--space-lg);
}

.license-card li {
    padding: var(--space-sm) 0;
    padding-left: var(--space-md);
    position: relative;
}

.license-card li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--koemoji-secondary);
    font-weight: bold;
}

.license-note {
    margin-top: var(--space-xl);
    text-align: center;
    font-size: 1.1rem;
}

.license-note a {
    color: var(--koemoji-primary);
    text-decoration: none;
}

.license-note a:hover {
    text-decoration: underline;
}

/* Support CTA Section */
.support-cta-section {
    background: linear-gradient(135deg, var(--koemoji-primary), var(--koemoji-accent));
    color: white;
}

.support-cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.support-cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
    color: white;
}

.support-cta-content p {
    font-size: 1.3rem;
    margin-bottom: var(--space-xl);
}

.support-cta-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Pricing Page Specific */
.comparison-table-wrapper {
    overflow-x: auto;
    margin-top: var(--space-xl);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
}

.comparison-table thead {
    background: var(--koemoji-dark);
    color: white;
}

.comparison-table th,
.comparison-table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid #E5E7EB;
}

.comparison-table th {
    font-weight: 600;
}

.comparison-table tbody tr:hover {
    background: var(--koemoji-light);
}

/* Support Hours Section */
.support-hours-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--space-xl);
    margin-top: var(--space-xl);
}

.support-hours-card {
    background: white;
    padding: var(--space-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-medium);
}

.support-hours-card.included {
    border-left: 4px solid var(--koemoji-secondary);
}

.support-hours-card.excluded {
    border-left: 4px solid #DC2626;
}

.support-hours-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.support-hours-card ul {
    list-style: none;
}

.support-hours-card li {
    padding: var(--space-sm) 0;
    padding-left: var(--space-md);
    position: relative;
}

.support-hours-card li::before {
    position: absolute;
    left: 0;
    font-weight: bold;
}

.support-hours-card.included li::before {
    content: "✓";
    color: var(--koemoji-secondary);
}

.support-hours-card.excluded li::before {
    content: "×";
    color: #DC2626;
}

.support-hours-details {
    margin-top: var(--space-xl);
    background: white;
    padding: var(--space-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-soft);
}

.support-hours-details h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.support-hours-details ul {
    list-style: none;
}

.support-hours-details li {
    padding: var(--space-sm) 0;
    padding-left: var(--space-md);
    position: relative;
}

.support-hours-details li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--koemoji-primary);
    font-weight: bold;
}

.monthly-report-example {
    margin-top: var(--space-xl);
}

.monthly-report-example h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.report-card {
    background: var(--koemoji-dark);
    padding: var(--space-lg);
    border-radius: 12px;
    overflow-x: auto;
}

.report-card pre {
    color: var(--koemoji-secondary);
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    line-height: 1.6;
    white-space: pre;
}

.overage-policy {
    margin-top: var(--space-xl);
    background: #FEF3C7;
    padding: var(--space-xl);
    border-radius: 16px;
    border-left: 4px solid var(--koemoji-warning);
}

.overage-policy h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.overage-policy ol {
    padding-left: var(--space-lg);
}

.overage-policy li {
    padding: var(--space-sm) 0;
    font-size: 1.1rem;
}

/* DX Consulting Section */
.dx-consulting-card {
    background: white;
    padding: var(--space-xl);
    border-radius: 20px;
    box-shadow: var(--shadow-large);
    margin-top: var(--space-xl);
}

.dx-consulting-header {
    text-align: center;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 2px solid var(--koemoji-light);
}

.dx-consulting-header h3 {
    font-size: 2.5rem;
    color: var(--koemoji-primary);
    margin-bottom: var(--space-sm);
}

.dx-consulting-services h4 {
    font-size: 1.5rem;
    margin-bottom: var(--space-lg);
    color: var(--koemoji-dark);
}

.dx-services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

.dx-service-item {
    background: var(--koemoji-light);
    padding: var(--space-lg);
    border-radius: 12px;
}

.dx-service-item h5 {
    font-size: 1.2rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.dx-service-item ul {
    list-style: none;
}

.dx-service-item li {
    padding: var(--space-xs) 0;
    padding-left: var(--space-md);
    position: relative;
}

.dx-service-item li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--koemoji-primary);
}

.dx-consulting-details {
    margin-top: var(--space-xl);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.dx-detail {
    background: var(--koemoji-light);
    padding: var(--space-lg);
    border-radius: 12px;
}

.dx-detail h4 {
    font-size: 1.3rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.dx-detail ul {
    list-style: none;
}

.dx-detail li {
    padding: var(--space-xs) 0;
}

/* Estimate Info */
.estimate-info {
    background: white;
    padding: var(--space-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-soft);
    margin: var(--space-xl) 0;
    text-align: left;
}

.estimate-info h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.estimate-info ol {
    padding-left: var(--space-lg);
}

.estimate-info li {
    padding: var(--space-sm) 0;
    font-size: 1.1rem;
}

/* Security Page Specific */
.security-principles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.principle-card {
    background: white;
    padding: var(--space-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-soft);
    text-align: center;
}

.principle-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto var(--space-md);
    background: linear-gradient(135deg, var(--koemoji-primary), var(--koemoji-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.principle-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--space-sm);
    color: var(--koemoji-dark);
}

/* Data Flow Diagram */
.data-flow-section {
    background: var(--koemoji-light);
}

.data-flow-card {
    background: white;
    padding: var(--space-xl);
    border-radius: 20px;
    box-shadow: var(--shadow-medium);
    margin-bottom: var(--space-xl);
}

.data-flow-card h3 {
    font-size: 1.8rem;
    margin-bottom: var(--space-lg);
    color: var(--koemoji-dark);
}

.flow-diagram {
    display: flex;
    gap: var(--space-lg);
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.flow-box {
    background: var(--koemoji-light);
    padding: var(--space-lg);
    border-radius: 16px;
    min-width: 300px;
}

.flow-box h4 {
    font-size: 1.3rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
    text-align: center;
}

.flow-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.flow-step {
    background: white;
    padding: var(--space-md);
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    position: relative;
}

.flow-step i {
    font-size: 1.5rem;
    color: var(--koemoji-primary);
}

.flow-step p {
    font-weight: 600;
    color: var(--koemoji-dark);
}

.flow-label {
    font-size: 0.9rem;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-weight: 600;
    display: inline-block;
    margin-left: auto;
}

.flow-label.safe {
    background: #D1FAE5;
    color: #059669;
}

.flow-label.local {
    background: #DBEAFE;
    color: #2563EB;
}

.flow-label.warning {
    background: #FEF3C7;
    color: #D97706;
}

.flow-label.info {
    background: #E0E7FF;
    color: #6366F1;
}

.flow-arrow {
    text-align: center;
    font-size: 1.5rem;
    color: var(--koemoji-primary);
    font-weight: bold;
}

.flow-arrow.horizontal {
    flex-shrink: 0;
}

.flow-note {
    margin-top: var(--space-md);
    text-align: center;
    font-weight: 600;
    color: var(--koemoji-secondary);
}

.flow-connection {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.flow-box.user-pc {
    border: 3px solid var(--koemoji-secondary);
}

.flow-box.external-api {
    border: 3px solid var(--koemoji-warning);
}

.flow-result {
    width: 100%;
    margin-top: var(--space-md);
}

.result-badge {
    padding: var(--space-md);
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-weight: 600;
}

.result-badge.safe {
    background: #D1FAE5;
    color: #059669;
}

.result-badge.warning {
    background: #FEF3C7;
    color: #D97706;
}

.result-badge i {
    font-size: 1.5rem;
}

.data-flow-note {
    margin-top: var(--space-xl);
    padding: var(--space-xl);
    background: white;
    border-radius: 16px;
    border-left: 4px solid var(--koemoji-primary);
}

.data-flow-note p {
    font-size: 1.1rem;
}

/* Security Features */
.security-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.security-feature-card {
    background: white;
    padding: var(--space-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-soft);
}

.security-feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--koemoji-primary), var(--koemoji-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    margin-bottom: var(--space-md);
}

.security-feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.security-feature-card ul {
    list-style: none;
}

.security-feature-card li {
    padding: var(--space-xs) 0;
    padding-left: var(--space-md);
    position: relative;
}

.security-feature-card li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--koemoji-primary);
    font-weight: bold;
}

/* Dependencies Section */
.dependencies-content {
    background: white;
    padding: var(--space-xl);
    border-radius: 20px;
    box-shadow: var(--shadow-medium);
}

.dependencies-content h3 {
    font-size: 1.8rem;
    margin-bottom: var(--space-lg);
    color: var(--koemoji-dark);
}

.dependencies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.dependency-card {
    background: var(--koemoji-light);
    padding: var(--space-lg);
    border-radius: 12px;
}

.dependency-card h4 {
    font-size: 1.2rem;
    margin-bottom: var(--space-sm);
    color: var(--koemoji-dark);
}

.security-scanning {
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 2px solid var(--koemoji-light);
}

.security-scanning h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.security-scanning ul {
    list-style: none;
}

.security-scanning li {
    padding: var(--space-sm) 0;
    padding-left: var(--space-md);
    position: relative;
}

.security-scanning li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--koemoji-secondary);
    font-weight: bold;
}

/* Best Practices */
.best-practices-grid {
    display: grid;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.practice-card {
    background: white;
    padding: var(--space-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-soft);
    display: flex;
    gap: var(--space-lg);
}

.practice-number {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: var(--koemoji-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.practice-content h3 {
    font-size: 1.3rem;
    margin-bottom: var(--space-sm);
    color: var(--koemoji-dark);
}

.code-example {
    margin-top: var(--space-md);
    background: var(--koemoji-dark);
    color: var(--koemoji-secondary);
    padding: var(--space-md);
    border-radius: 8px;
    font-family: 'Courier New', monospace;
}

/* Limitations Section */
.limitations-content {
    display: grid;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.limitation-card {
    background: white;
    padding: var(--space-xl);
    border-radius: 16px;
    box-shadow: var(--shadow-soft);
    border-left: 4px solid var(--koemoji-warning);
}

.limitation-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.limitation-card ul {
    list-style: none;
}

.limitation-card li {
    padding: var(--space-xs) 0;
    padding-left: var(--space-md);
    position: relative;
}

.limitation-card li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--koemoji-warning);
}

/* Security Researchers Section */
.researchers-content {
    background: white;
    padding: var(--space-xl);
    border-radius: 20px;
    box-shadow: var(--shadow-large);
}

.researchers-content h3 {
    font-size: 1.8rem;
    margin-bottom: var(--space-lg);
    color: var(--koemoji-dark);
}

.disclosure-guidelines {
    margin: var(--space-lg) 0;
}

.guideline-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md) 0;
}

.guideline-item i {
    color: var(--koemoji-secondary);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.vulnerability-report {
    background: var(--koemoji-light);
    padding: var(--space-lg);
    border-radius: 12px;
    margin: var(--space-lg) 0;
}

.vulnerability-report p {
    font-size: 1.1rem;
    margin: var(--space-sm) 0;
}

.researchers-content ol {
    padding-left: var(--space-lg);
    margin: var(--space-lg) 0;
}

.researchers-content ol li {
    padding: var(--space-sm) 0;
    font-size: 1.1rem;
}

.response-timeline {
    display: grid;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.timeline-item {
    background: var(--koemoji-light);
    padding: var(--space-lg);
    border-radius: 12px;
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.timeline-badge {
    background: var(--koemoji-primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    white-space: nowrap;
}

.related-links {
    margin-top: var(--space-xl);
}

.related-links h3 {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    color: var(--koemoji-dark);
}

.related-links ul {
    list-style: none;
}

.related-links li {
    margin: var(--space-sm) 0;
}

.related-links a {
    color: var(--koemoji-primary);
    text-decoration: none;
    font-size: 1.1rem;
}

.related-links a:hover {
    text-decoration: underline;
}

/* ===== Help Page - TRUE FLOWCHART Styles ===== */

/* フローチャート全体コンテナ */
.true-flowchart {
    background: white;
    border-radius: 20px;
    padding: var(--space-2xl);
    margin-bottom: var(--space-2xl);
    box-shadow: var(--shadow-large);
    max-width: 100%;
    width: 100%;
}

/* フローチャートノード共通スタイル */
.flowchart-node {
    background: white;
    border-radius: 12px;
    padding: var(--space-xl);
    margin: 0 auto;
    text-align: center;
    box-shadow: var(--shadow-medium);
    transition: all 0.3s var(--ease-smooth);
}

.flowchart-node:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-large);
}

/* ノード内要素 */
.node-icon {
    font-size: 3.5rem;
    margin-bottom: var(--space-md);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.node-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1F2937;
    margin-bottom: var(--space-sm);
}

.node-content {
    font-size: 1.15rem;
    color: #374151;
    line-height: 1.8;
}

.node-detail {
    font-size: 1rem;
    color: #6B7280;
    font-style: italic;
    margin-top: var(--space-sm);
}

/* スタートノード */
.start-node {
    max-width: 450px;
    border: 3px solid #DC2626;
    background: linear-gradient(135deg, #FEE2E2, #FECACA);
}

/* アクションノード（コマンド実行） */
.action-node {
    max-width: 1000px;
    border: 3px solid #3B82F6;
    background: linear-gradient(135deg, #EFF6FF, #DBEAFE);
}

.action-node code {
    background: #1F2937;
    color: #10B981;
    padding: var(--space-xs) var(--space-md);
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    display: inline-block;
    margin: var(--space-sm) 0;
    font-weight: bold;
    border: 2px solid #10B981;
}

/* 新しいコマンドヘルプデザイン */
.cmd-help-title {
    font-weight: 600;
    color: #1F2937;
    font-size: 0.95rem;
    margin: var(--space-md) 0 var(--space-sm) 0;
    text-align: center;
}

.step-instruction {
    margin-bottom: var(--space-md);
    font-size: 1.1rem;
    color: #1F2937;
    font-weight: 600;
    text-align: center;
}

.code-with-copy {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: #1F2937;
    padding: 0.6rem 0.8rem;
    border-radius: 6px;
    margin: var(--space-sm) 0;
}

.code-with-copy code {
    color: #10B981;
    background: transparent;
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    padding: 0;
    margin: 0;
}

.copy-btn {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 500;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.copy-btn i {
    margin-right: 0.25rem;
    font-size: 0.7rem;
}

.copy-btn.copied {
    background: #10B981;
    border-color: #10B981;
}

.os-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-md);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.os-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border: 2px solid #E5E7EB;
}

.os-card-header {
    padding: var(--space-sm) var(--space-md);
    font-weight: 600;
    color: white;
    text-align: center;
    font-size: 0.9rem;
}

.windows-card .os-card-header {
    background: linear-gradient(135deg, #0078D4, #005A9E);
}

.mac-card .os-card-header {
    background: linear-gradient(135deg, #000000, #333333);
}

.os-card-header i {
    margin-right: 0.3rem;
}

.os-card-steps {
    padding: var(--space-lg);
    text-align: left;
}

.os-step {
    padding: 0.5rem 0;
    font-size: 0.8rem;
    color: #374151;
    line-height: 1.6;
}

.os-step kbd {
    background: #1F2937;
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.75rem;
    display: inline-block;
    margin: 0 0.2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.os-step .input-text {
    background: #F3F4F6;
    color: #1F2937;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.75rem;
    font-weight: 600;
    border: 1px solid #D1D5DB;
}

.os-screenshot {
    margin-top: var(--space-md);
    text-align: center;
    padding: 0 var(--space-sm);
}

.os-screenshot img {
    max-width: 100%;
    width: 100%;
    height: auto;
    border-radius: 6px;
    border: 1px solid #E5E7EB;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

/* 矢印 */
.flowchart-arrow {
    text-align: center;
    font-size: 2rem;
    color: #3B82F6;
    margin: var(--space-sm) 0;
    font-weight: bold;
}

/* 判断ノード（ダイヤモンド風） */
.flowchart-decision {
    max-width: 200px;
    margin: var(--space-lg) auto;
    padding: var(--space-md);
    background: linear-gradient(135deg, #FEF3C7, #FDE68A);
    border: 3px solid #F59E0B;
    border-radius: 50%;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-medium);
}

.decision-label {
    font-size: 1.3rem;
    font-weight: 700;
    color: #92400E;
}

/* 分岐コンテナ */
.flowchart-branches-container {
    position: relative;
    margin-top: var(--space-2xl);
    padding-top: var(--space-xl);
}

.branch-line {
    position: absolute;
    top: 0;
    left: 12.5%;
    right: 12.5%;
    height: 4px;
    background: linear-gradient(90deg, #DC2626, #F59E0B, #10B981, #3B82F6);
    border-radius: 2px;
}

.flowchart-branches-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

/* 個別の分岐 */
.flowchart-branch {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.branch-arrow {
    font-size: 2.5rem;
    color: #3B82F6;
    margin: var(--space-md) 0;
    font-weight: bold;
}

/* 条件ノード（各ケース） */
.condition-node {
    width: 100%;
    max-width: 450px;
    padding: var(--space-lg);
    border-width: 3px;
    border-style: solid;
}

.condition-node.error {
    border-color: #DC2626;
    background: linear-gradient(135deg, #FEE2E2, #FECACA);
}

.condition-node.warning {
    border-color: #F59E0B;
    background: linear-gradient(135deg, #FEF3C7, #FDE68A);
}

.condition-node.success {
    border-color: #10B981;
    background: linear-gradient(135deg, #D1FAE5, #A7F3D0);
}

.condition-node.info {
    border-color: #3B82F6;
    background: linear-gradient(135deg, #DBEAFE, #BFDBFE);
}

/* 解決策ノード */
.solution-node {
    width: 100%;
    max-width: 450px;
    padding: var(--space-lg);
    background: #F9FAFB;
    border: 2px solid #E5E7EB;
    border-radius: 12px;
}

.solution-node.case-a {
    border-left: 8px solid #DC2626;
}

.solution-node.case-b {
    border-left: 8px solid #F59E0B;
}

.solution-node.case-c {
    border-left: 8px solid #10B981;
}

.solution-node.case-other {
    border-left: 8px solid #3B82F6;
}

.solution-icon {
    font-size: 2.8rem;
    margin-bottom: var(--space-md);
}

.solution-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: #1F2937;
    margin-bottom: var(--space-md);
}

/* コンパクトなステップ表示 */
.solution-steps-compact {
    text-align: left;
    font-size: 1rem;
    line-height: 1.8;
}

.compact-step {
    padding: 0.4rem 0;
    color: #374151;
}

.compact-step a {
    color: #3B82F6;
    text-decoration: none;
    font-weight: 600;
}

.compact-step a:hover {
    text-decoration: underline;
}

.compact-step code {
    background: #1F2937;
    color: #10B981;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
}

.compact-step-note {
    font-size: 0.85rem;
    color: #6B7280;
    font-style: italic;
    padding: 0.3rem 0;
}

/* 収束（完了ノード） */
.flowchart-convergence {
    margin-top: var(--space-xl);
}

.convergence-line {
    width: 75%;
    height: 3px;
    background: linear-gradient(90deg, #DC2626, #F59E0B, #10B981, #3B82F6);
    margin: 0 auto;
    border-radius: 2px;
}

.end-node {
    max-width: 450px;
    border: 3px solid #10B981;
    background: linear-gradient(135deg, #D1FAE5, #A7F3D0);
    margin-top: var(--space-md);
}

.end-node .node-icon {
    font-size: 2.5rem;
}

.end-node .node-title {
    color: #065F46;
    font-size: 1.3rem;
}

.end-node .node-content {
    color: #047857;
    font-weight: 600;
    font-size: 0.95rem;
}

/* タブレット対応 (769px - 1024px) - デスクトップと同じ4列表示 */
@media only screen and (min-width: 769px) and (max-width: 1024px) {
    .flowchart-branches-container {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-md);
    }

    .condition-node,
    .solution-node {
        max-width: 100%;
        font-size: 0.9rem;
    }

    .node-icon {
        font-size: 2.5rem;
    }

    .solution-icon {
        font-size: 2rem;
    }
}

/* モバイル対応 (768px以下) - 診断フロー形式 */
@media only screen and (max-width: 768px) {
    .true-flowchart {
        padding: var(--space-md);
        margin: 0;
        border-radius: 0;
        background: transparent;
        box-shadow: none;
    }

    /* 分岐線・収束線を非表示 */
    .branch-line,
    .convergence-line {
        display: none;
    }

    /* 分岐コンテナを診断リスト形式に */
    .flowchart-branches-container {
        display: block;
        margin-top: var(--space-xl);
    }

    /* 各ケースを独立したカードに */
    .flowchart-branch {
        background: white;
        border-radius: 12px;
        padding: 0;
        margin-bottom: var(--space-lg);
        box-shadow: 0 4px 16px rgba(0,0,0,0.12);
        overflow: hidden;
    }

    /* 分岐内の矢印を非表示 */
    .flowchart-branch .branch-arrow {
        display: none;
    }

    /* 条件ノード（ケース表示）をヘッダー風に */
    .condition-node {
        max-width: 100%;
        border-radius: 0;
        margin: 0;
        padding: var(--space-md);
        box-shadow: none;
        border: none;
        font-weight: 600;
    }

    .condition-node.error {
        background: linear-gradient(135deg, #FEE2E2, #FECACA);
        border-left: 6px solid #DC2626;
    }

    .condition-node.warning {
        background: linear-gradient(135deg, #FEF3C7, #FDE68A);
        border-left: 6px solid #F59E0B;
    }

    .condition-node.success {
        background: linear-gradient(135deg, #D1FAE5, #A7F3D0);
        border-left: 6px solid #10B981;
    }

    .condition-node.info {
        background: linear-gradient(135deg, #DBEAFE, #BFDBFE);
        border-left: 6px solid #3B82F6;
    }

    .node-icon {
        font-size: 2.5rem;
        margin-bottom: 0.5rem;
    }

    .node-title {
        font-size: 1.2rem;
        margin-bottom: 0.3rem;
        font-weight: 700;
    }

    .node-detail {
        font-size: 0.9rem;
        opacity: 0.9;
    }

    /* 解決策ノードを本文エリアに */
    .solution-node {
        max-width: 100%;
        border-radius: 0;
        margin: 0;
        padding: var(--space-lg) var(--space-md);
        background: white;
        border: none;
        box-shadow: none;
        text-align: left;
    }

    .solution-node.case-a,
    .solution-node.case-b,
    .solution-node.case-c,
    .solution-node.case-other {
        border-left: none;
    }

    .solution-icon {
        font-size: 2rem;
        margin-bottom: 0.5rem;
    }

    .solution-title {
        font-size: 1.1rem;
        margin-bottom: var(--space-md);
        font-weight: 600;
        color: #1F2937;
    }

    .solution-steps-compact {
        font-size: 0.95rem;
        line-height: 1.8;
        text-align: left;
    }

    .compact-step {
        margin-bottom: 0.8rem;
        padding-left: 0.3rem;
    }

    .compact-step code {
        font-size: 0.85rem;
        display: block;
        margin-top: 0.4rem;
        padding: 0.5rem;
        background: #F3F4F6;
        border-radius: 6px;
        word-break: break-all;
        border: 1px solid #E5E7EB;
    }

    .compact-step-note {
        font-size: 0.85rem;
        color: #6B7280;
        font-style: italic;
    }

    /* 決定ノード - デスクトップと同じデザイン */
    .flowchart-decision {
        max-width: 300px;
        margin: var(--space-xl) auto;
    }

    .decision-label {
        font-size: 1.2rem;
    }

    /* 基本ノード */
    .flowchart-node {
        padding: var(--space-lg) var(--space-md);
    }

    .start-node,
    .action-node,
    .end-node {
        max-width: 100%;
        margin: 0 auto var(--space-lg) auto;
    }

    .node-content {
        font-size: 1rem;
        line-height: 1.6;
    }

    /* アクションノードのコード */
    .action-node code {
        font-size: 1.1rem;
        padding: 0.7rem 1rem;
        display: block;
        margin: var(--space-md) 0;
        background: #1F2937;
        color: #10B981;
        border-radius: 8px;
    }

    /* OS別カード */
    .os-cards {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
        margin-top: var(--space-md);
    }

    .os-card {
        margin-bottom: 0;
    }

    .os-card-header {
        font-size: 0.95rem;
        padding: var(--space-xs) var(--space-sm);
    }

    .os-step {
        font-size: 0.9rem;
        padding: 0.4rem var(--space-sm);
    }

    .os-step kbd {
        font-size: 0.8rem;
        padding: 0.15rem 0.4rem;
    }

    .cmd-help-title {
        font-size: 0.95rem;
        margin-top: var(--space-md);
        margin-bottom: var(--space-sm);
        color: #374151;
        font-weight: 500;
    }

    /* メインの流れの矢印 */
    .flowchart-arrow {
        font-size: 2.5rem;
        margin: var(--space-lg) 0;
        color: #3B82F6;
    }

    /* 収束セクション */
    .flowchart-convergence {
        margin-top: var(--space-2xl);
    }

    /* 完了ノード */
    .end-node {
        background: linear-gradient(135deg, #D1FAE5, #A7F3D0);
        border: 3px solid #10B981;
    }
}

/* ===== OLD Flowchart Styles (削除予定) ===== */

/* Symptom Card */
.symptom-card {
    background: #FEE2E2;
    border: 3px solid #DC2626;
    border-radius: 16px;
    padding: var(--space-xl);
    text-align: center;
    margin-bottom: var(--space-xl);
}

.symptom-card h3 {
    font-size: 1.5rem;
    color: #DC2626;
    margin-bottom: var(--space-md);
}

.symptom-card h3 i {
    margin-right: 0.5rem;
}

.symptom-text {
    font-size: 1.2rem;
    font-weight: 600;
    color: #991B1B;
}

/* Check Card (Environment Check) */
.check-card {
    background: white;
    border: 2px solid #3B82F6;
    border-radius: 16px;
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
    box-shadow: var(--shadow-medium);
}

.check-card h3 {
    font-size: 1.5rem;
    color: #1F2937;
    margin-bottom: var(--space-lg);
    text-align: center;
}

.check-card h3 i {
    color: #3B82F6;
    margin-right: 0.5rem;
}

.check-steps {
    display: grid;
    gap: var(--space-lg);
}

.check-step {
    display: flex;
    gap: var(--space-lg);
    align-items: flex-start;
}

.check-step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3B82F6, #8B5CF6);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.check-step-content {
    flex: 1;
}

.check-step-content h4 {
    font-size: 1.3rem;
    color: #1F2937;
    margin-bottom: var(--space-md);
}

.check-step-content p {
    margin-bottom: var(--space-sm);
    color: #374151;
}

.os-instructions {
    display: grid;
    gap: var(--space-md);
    margin-top: var(--space-md);
}

.os-instruction {
    background: #F9FAFB;
    padding: var(--space-md);
    border-radius: 12px;
    border-left: 4px solid #3B82F6;
}

.os-instruction.windows {
    border-left-color: #0078D4;
}

.os-instruction.mac {
    border-left-color: #000000;
}

.os-instruction p {
    font-size: 1.1rem;
    margin-bottom: var(--space-sm);
}

.os-instruction p i {
    margin-right: 0.5rem;
}

.os-instruction ul {
    list-style: none;
    margin-left: var(--space-md);
}

.os-instruction li {
    padding: 0.4rem 0;
    padding-left: var(--space-md);
    position: relative;
    color: #374151;
}

.os-instruction li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: #3B82F6;
    font-weight: bold;
}

.os-instruction kbd {
    background: #1F2937;
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    font-weight: 600;
}

/* Flowchart Section */
.flowchart-section {
    background: white;
    border: 2px solid #10B981;
    border-radius: 16px;
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
    box-shadow: var(--shadow-medium);
}

.flowchart-section h3 {
    font-size: 1.5rem;
    color: #1F2937;
    margin-bottom: var(--space-sm);
    text-align: center;
}

.flowchart-section h3 i {
    color: #10B981;
    margin-right: 0.5rem;
}

.flowchart-subtitle {
    text-align: center;
    color: #6B7280;
    font-size: 1.1rem;
    margin-bottom: var(--space-xl);
}

.flowchart-branches {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.branch-card {
    background: white;
    border: 3px solid #E5E7EB;
    border-radius: 16px;
    padding: var(--space-lg);
    text-align: center;
    cursor: pointer;
    transition: all 0.3s var(--ease-smooth);
    position: relative;
    overflow: hidden;
}

.branch-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 8px;
    transition: all 0.3s var(--ease-smooth);
}

.branch-card.case-a {
    border-color: #FCA5A5;
}

.branch-card.case-a::before {
    background: linear-gradient(90deg, #DC2626, #EF4444);
}

.branch-card.case-b {
    border-color: #FCD34D;
}

.branch-card.case-b::before {
    background: linear-gradient(90deg, #D97706, #F59E0B);
}

.branch-card.case-c {
    border-color: #86EFAC;
}

.branch-card.case-c::before {
    background: linear-gradient(90deg, #059669, #10B981);
}

.branch-card.case-other {
    border-color: #93C5FD;
}

.branch-card.case-other::before {
    background: linear-gradient(90deg, #2563EB, #3B82F6);
}

.branch-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}

.branch-card.case-a:hover {
    border-color: #DC2626;
    box-shadow: 0 12px 30px rgba(220, 38, 38, 0.3);
}

.branch-card.case-b:hover {
    border-color: #F59E0B;
    box-shadow: 0 12px 30px rgba(245, 158, 11, 0.3);
}

.branch-card.case-c:hover {
    border-color: #10B981;
    box-shadow: 0 12px 30px rgba(16, 185, 129, 0.3);
}

.branch-card.case-other:hover {
    border-color: #3B82F6;
    box-shadow: 0 12px 30px rgba(59, 130, 246, 0.3);
}

.branch-icon {
    font-size: 4rem;
    margin-bottom: var(--space-md);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.branch-card h4 {
    font-size: 1.4rem;
    color: #1F2937;
    margin-bottom: var(--space-sm);
    font-weight: 700;
}

.branch-card p {
    font-size: 1.1rem;
    color: #374151;
    margin-bottom: var(--space-sm);
    font-weight: 600;
}

.branch-detail {
    font-size: 0.95rem;
    color: #6B7280;
    font-style: italic;
}

/* Solution Sections */
.solution-section {
    background: white;
    border-radius: 16px;
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
    box-shadow: var(--shadow-large);
    animation: slideIn 0.5s var(--ease-smooth);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.solution-header {
    padding: var(--space-lg);
    border-radius: 12px;
    margin-bottom: var(--space-xl);
    text-align: center;
}

.solution-header h3 {
    font-size: 1.8rem;
    color: white;
    font-weight: 700;
}

.case-a-header {
    background: linear-gradient(135deg, #DC2626, #EF4444);
}

.case-b-header {
    background: linear-gradient(135deg, #D97706, #F59E0B);
}

.case-c-header {
    background: linear-gradient(135deg, #059669, #10B981);
}

.case-other-header {
    background: linear-gradient(135deg, #2563EB, #3B82F6);
}

.solution-body {
    padding: 0 var(--space-md);
}

.solution-symptom,
.solution-cause {
    background: #F9FAFB;
    padding: var(--space-lg);
    border-radius: 12px;
    margin-bottom: var(--space-lg);
    border-left: 4px solid #3B82F6;
}

.solution-symptom h4,
.solution-cause h4 {
    font-size: 1.2rem;
    color: #1F2937;
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.solution-symptom h4 i,
.solution-cause h4 i {
    color: #3B82F6;
}

.solution-steps {
    margin-top: var(--space-lg);
}

.solution-steps .step {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 2px dashed #E5E7EB;
}

.solution-steps .step:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.solution-steps .step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3B82F6, #8B5CF6);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.solution-steps .step-content {
    flex: 1;
}

.solution-steps .step-content h5 {
    font-size: 1.3rem;
    color: #1F2937;
    margin-bottom: var(--space-md);
    font-weight: 600;
}

.solution-steps .step-content p {
    color: #374151;
    line-height: 1.8;
    margin-bottom: var(--space-sm);
}

.solution-steps .step-content ul {
    list-style: none;
    margin: var(--space-md) 0;
}

.solution-steps .step-content li {
    padding: 0.5rem 0;
    padding-left: var(--space-md);
    position: relative;
    color: #374151;
}

.solution-steps .step-content li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #10B981;
    font-weight: bold;
    font-size: 1.2rem;
}

.important-note {
    background: #FEF3C7;
    border: 2px solid #F59E0B;
    border-radius: 12px;
    padding: var(--space-lg);
    margin: var(--space-md) 0;
}

.important-note p {
    color: #92400E;
    font-weight: 600;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.important-note p i {
    color: #F59E0B;
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.error-text {
    background: #1F2937;
    color: #EF4444;
    padding: var(--space-md);
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    margin: var(--space-md) 0;
    font-size: 0.95rem;
    border: 2px solid #EF4444;
}

.version-text {
    background: #1F2937;
    color: #10B981;
    padding: var(--space-md);
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    margin: var(--space-md) 0;
    font-size: 1rem;
    border: 2px solid #10B981;
}

.solution-complete {
    background: linear-gradient(135deg, #D1FAE5, #A7F3D0);
    border: 3px solid #10B981;
    border-radius: 16px;
    padding: var(--space-xl);
    text-align: center;
    margin-top: var(--space-xl);
}

.solution-complete h4 {
    font-size: 1.5rem;
    color: #065F46;
    margin-bottom: var(--space-md);
}

.solution-complete h4 i {
    color: #10B981;
    margin-right: 0.5rem;
    font-size: 1.8rem;
}

.solution-complete p {
    font-size: 1.1rem;
    color: #047857;
    font-weight: 600;
}

.download-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: #3B82F6;
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s var(--ease-smooth);
    margin: var(--space-md) 0;
}

.download-link:hover {
    background: #2563EB;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.alternative-solution {
    background: #EFF6FF;
    border-left: 4px solid #3B82F6;
    border-radius: 8px;
    padding: var(--space-lg);
    margin-top: var(--space-lg);
}

.alternative-solution h5 {
    font-size: 1.1rem;
    color: #1E40AF;
    margin-bottom: var(--space-sm);
}

.alternative-solution p {
    color: #1E3A8A;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }

    .section {
        padding: var(--space-xl) 0;
    }

    .security-points-grid,
    .problems-grid,
    .ai-modes-grid,
    .industries-grid,
    .roi-comparison,
    .pricing-grid,
    .flow-timeline,
    .contact-methods,
    .footer-content {
        grid-template-columns: 1fr;
    }

    .step-card {
        flex-direction: column;
    }

    .flow-diagram {
        flex-direction: column;
    }

    .download-card {
        flex-direction: column;
        text-align: center;
    }

    .download-info {
        flex-direction: column;
    }

    .practice-card {
        flex-direction: column;
    }

    .timeline-item {
        flex-direction: column;
        text-align: center;
    }

    /* Flowchart Responsive */
    .flowchart-branches {
        grid-template-columns: 1fr;
    }

    .check-step {
        flex-direction: column;
    }

    .check-step-number {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .solution-steps .step {
        flex-direction: column;
    }

    .solution-steps .step-number {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }

    .branch-icon {
        font-size: 3rem;
    }
}