:root {
    /* Color Palette */
    --primary-color: #5d7a6a;
    /* Forest Green (Sincerity) */
    --secondary-color: #e5e0db;
    /* Warm Beige (Comfort) */
    --accent-color: #8a7b9c;
    /* Soft Lavender (Relaxation) */
    --text-color: #2c2c2c;
    --text-muted: #666;
    --bg-light: #fdfbf9;
    --white: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.3);

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

    /* Shadows */
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.05);
}

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

body {
    font-family: 'Outfit', 'Inter', 'Noto Sans JP', sans-serif;
    line-height: 1.8;
    color: var(--text-color);
    background-color: var(--bg-light);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
    font-weight: 700;
    line-height: 1.3;
}

.container {
    max-width: 800px;
    /* Article focus */
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    opacity: 0;
    animation: fadeInUp 1s forwards;
}

/* Sections */
section {
    padding: var(--spacing-xl) 0;
}

/* Hero Section */
.hero {
    position: relative;
    padding-top: var(--spacing-xl);
    text-align: center;
}

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

.hero h1 {
    font-size: 2.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.hero span {
    font-size: 1.1rem;
    display: block;
    margin-bottom: var(--spacing-md);
    color: var(--text-muted);
}

.hero-image {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    border-radius: 20px;
    box-shadow: var(--shadow-soft);
    overflow: hidden;
}

.hero-image img {
    width: 100%;
    display: block;
    transition: transform 0.8s ease;
}

.hero-image:hover img {
    transform: scale(1.02);
}

/* Article Styling */
.article-text {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
}

.article-text b {
    color: var(--primary-color);
}

.quote-box {
    border-left: 4px solid var(--accent-color);
    padding-left: var(--spacing-md);
    font-style: italic;
    margin: var(--spacing-md) 0;
    color: var(--text-muted);
}

.image-full {
    width: 100%;
    border-radius: 12px;
    margin: var(--spacing-md) 0;
    box-shadow: var(--shadow-soft);
}

/* Solution Cards */
.solution-grid {
    display: grid;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.solution-card {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 15px;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--secondary-color);
}

.solution-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
}

/* Limit Section */
.limit-section {
    background: var(--secondary-color);
    border-radius: 30px;
    padding: var(--spacing-lg) var(--spacing-md);
    text-align: center;
    margin: var(--spacing-xl) auto;
}

.limit-tag {
    background: var(--primary-color);
    color: var(--white);
    padding: 0.2rem 1rem;
    border-radius: 50px;
    display: inline-block;
    font-size: 0.9rem;
    margin-bottom: var(--spacing-sm);
}

/* CTA */
.cta-box {
    text-align: center;
    margin: var(--spacing-xl) 0;
    position: sticky;
    bottom: 2rem;
    z-index: 100;
}

.line-btn {
    background: #06c755;
    color: white;
    padding: 1.2rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.2rem;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 10px 25px rgba(6, 199, 85, 0.4);
    transition: all 0.3s ease;
}

.line-btn:hover {
    transform: scale(1.05);
    background: #05b34c;
}

.cta-subtext {
    font-size: 0.8rem;
    margin-top: var(--spacing-xs);
    color: var(--text-muted);
}

/* New: Comparison Table */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-md) 0;
    font-size: 0.95rem;
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}

.comparison-table th,
.comparison-table td {
    padding: var(--spacing-sm);
    border: 1px solid var(--secondary-color);
    text-align: center;
}

.comparison-table th {
    background: var(--secondary-color);
    color: var(--primary-color);
}

.comparison-table .feature-col {
    text-align: left;
    font-weight: 700;
}

.recommend-row {
    background: rgba(93, 122, 106, 0.05);
}

/* New: Popularity Badge */
.popularity-badge {
    background: var(--accent-color);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 700;
    display: inline-block;
    margin-bottom: var(--spacing-xs);
}

/* New: Highlight Text (System 1 Appeal) */
.highlight-system1 {
    color: #d9534f;
    /* Warning Red for Loss Aversion */
    font-weight: 700;
}

/* New: Testimonials (Windsor Effect) */
.testimonial-section {
    background: var(--bg-light);
    padding: var(--spacing-xl) 0;
}

.testimonial-card {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 12px;
    margin-bottom: var(--spacing-md);
    border-left: 4px solid var(--primary-color);
    box-shadow: var(--shadow-soft);
}

.testimonial-text {
    font-size: 0.95rem;
    font-style: italic;
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
}

.testimonial-author {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-muted);
    text-align: right;
}

/* New: 3-Step Process (Paradox of Choice Mitigation) */
.steps-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.step-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 15px;
    border: 1px dashed var(--primary-color);
}

.step-number {
    background: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

/* New: Teaser (Zeigarnik Effect) */
.teaser-box {
    background: linear-gradient(135deg, var(--bg-light), var(--secondary-color));
    padding: var(--spacing-md);
    border-radius: 15px;
    margin: var(--spacing-md) 0;
    position: relative;
    overflow: hidden;
}

.teaser-content {
    filter: blur(2px);
    user-select: none;
    opacity: 0.6;
}

.teaser-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.4);
    font-weight: 700;
    color: var(--primary-color);
}

/* Responsive */
@media (max-width: 600px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero h1 {
        font-size: 1.6rem;
    }

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