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

:root {
    /* Color Palette - Earth & Natural Colors */
    --color-primary: #6B8E23;        /* Olive Green */
    --color-primary-dark: #556B2F;   /* Dark Olive */
    --color-secondary: #8B7355;      /* Brown */
    --color-accent: #D2691E;         /* Chocolate */
    --color-bg-light: #FAF8F3;       /* Cream */
    --color-bg-beige: #F5F1E8;       /* Light Beige */
    --color-text-dark: #3E3E3E;      /* Dark Gray */
    --color-text-light: #666666;     /* Medium Gray */
    --color-white: #FFFFFF;
    --color-border: #E0D5C7;         /* Beige Border */
    
    /* Typography */
    --font-main: 'Noto Sans JP', sans-serif;
    --font-accent: 'Noto Serif JP', serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--color-text-dark);
    line-height: 1.8;
    background-color: var(--color-bg-light);
}

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

a {
    text-decoration: none;
    color: inherit;
}

/* ===================================
   Container & Layout
   =================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===================================
   Typography
   =================================== */
.section-title {
    font-family: var(--font-accent);
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-lg);
    position: relative;
    padding-bottom: var(--spacing-sm);
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    margin: var(--spacing-sm) auto 0;
    border-radius: 2px;
}

.title-subtitle {
    display: block;
    font-size: 1rem;
    font-weight: 400;
    color: var(--color-text-light);
    margin-top: var(--spacing-xs);
}

.text-accent {
    color: var(--color-primary);
    font-weight: 700;
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: var(--radius-md);
    font-weight: 700;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 1.1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

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

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1.25rem;
}

.btn-hero {
    margin-top: var(--spacing-md);
}

.btn-full {
    width: 100%;
}

/* ===================================
   Header
   =================================== */
.header {
    background-color: var(--color-white);
    padding: var(--spacing-md) 0;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-logo h1 {
    font-family: var(--font-accent);
    font-size: 2rem;
    color: var(--color-primary-dark);
    text-align: center;
}

.header-logo span {
    font-size: 1.2rem;
    color: var(--color-text-light);
    font-weight: 400;
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    background: linear-gradient(135deg, #F5F1E8 0%, #E8DCC8 100%);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-subtitle {
    font-size: 1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.hero-title {
    font-family: var(--font-accent);
    font-size: 3rem;
    line-height: 1.4;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-md);
}

.hero-title-accent {
    display: block;
    color: var(--color-primary);
    font-size: 3.2rem;
    margin-top: var(--spacing-sm);
}

.hero-description {
    font-size: 1.2rem;
    line-height: 2;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-lg);
}

.hero-price {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    display: inline-block;
    margin-bottom: var(--spacing-md);
}

.price-label {
    font-size: 1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
}

.price-amount {
    font-family: var(--font-accent);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.price-tax {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-text-dark);
}

/* ===================================
   Problem Section
   =================================== */
.problem {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.problem-item {
    background-color: var(--color-bg-beige);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
    transition: transform 0.3s ease;
}

.problem-item:hover {
    transform: translateY(-4px);
}

.problem-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.problem-item p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--color-text-dark);
}

/* ===================================
   About Section
   =================================== */
.about {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, var(--color-bg-light) 0%, var(--color-white) 100%);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text {
    font-size: 1.1rem;
    line-height: 2;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.about-highlight {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin: var(--spacing-lg) 0;
    box-shadow: var(--shadow-md);
}

.about-highlight h3 {
    color: var(--color-white);
    font-size: 1.5rem;
    line-height: 2;
    text-align: center;
    font-weight: 500;
}

.about-points {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.about-point {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    background-color: var(--color-bg-beige);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
}

.point-icon {
    font-size: 1.5rem;
    color: var(--color-primary);
    flex-shrink: 0;
}

.about-point p {
    font-size: 1.1rem;
}

.about-closing {
    text-align: center;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-primary-dark);
}

/* ===================================
   Sessions Section
   =================================== */
.sessions {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

.session-card {
    background-color: var(--color-bg-light);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.session-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.session-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-border);
}

.session-number {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
}

.session-category {
    font-family: var(--font-accent);
    font-size: 2rem;
    color: var(--color-primary-dark);
}

.session-content {
    position: relative;
}

.session-title {
    font-size: 1.5rem;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-md);
    font-weight: 700;
}

.session-icon {
    font-size: 4rem;
    text-align: center;
    margin: var(--spacing-md) 0;
}

.session-description {
    font-size: 1.1rem;
    line-height: 2;
    color: var(--color-text-dark);
}

.session-points {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-bg-beige);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-primary);
}

.session-points p {
    margin-bottom: var(--spacing-xs);
    font-size: 1rem;
}

/* ===================================
   Benefits Section
   =================================== */
.benefits {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, var(--color-bg-light) 0%, var(--color-bg-beige) 100%);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.benefit-item {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.benefit-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.benefit-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
}

.benefit-item h3 {
    font-size: 1.3rem;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.benefit-item p {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--color-text-light);
}

/* ===================================
   Apply Section
   =================================== */
.apply {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
}

.apply .section-title {
    color: var(--color-white);
}

.apply .section-title::after {
    background: var(--color-white);
}

.apply-box {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.apply-title {
    font-family: var(--font-accent);
    font-size: 2rem;
    text-align: center;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.apply-format {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--color-bg-beige);
    border-radius: var(--radius-md);
}

.apply-format p {
    font-size: 1.1rem;
    line-height: 1.8;
}

.apply-sessions {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background-color: var(--color-bg-light);
    border-radius: var(--radius-md);
}

.apply-sessions p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
}

.apply-sessions ul {
    list-style: none;
    padding-left: 0;
}

.apply-sessions li {
    padding: var(--spacing-xs) 0;
    padding-left: 1.5rem;
    position: relative;
    font-size: 1rem;
}

.apply-sessions li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

.apply-price-box {
    text-align: center;
    background: linear-gradient(135deg, var(--color-bg-beige) 0%, var(--color-bg-light) 100%);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    border: 3px solid var(--color-primary);
}

.apply-price-label {
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.apply-price-amount {
    font-family: var(--font-accent);
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.apply-price-amount span {
    font-size: 1.5rem;
    font-weight: 400;
}

.apply-note {
    text-align: center;
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-top: var(--spacing-md);
}

/* ===================================
   FAQ Section
   =================================== */
.faq {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.faq-question {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.faq-q {
    background: var(--color-primary);
    color: var(--color-white);
    font-weight: 700;
    padding: 0.5rem 1rem;
    border-radius: 50%;
    flex-shrink: 0;
    font-size: 1.2rem;
}

.faq-question h3 {
    font-size: 1.2rem;
    color: var(--color-text-dark);
    line-height: 1.6;
    padding-top: 0.3rem;
}

.faq-answer {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding-left: var(--spacing-sm);
}

.faq-a {
    background: var(--color-accent);
    color: var(--color-white);
    font-weight: 700;
    padding: 0.5rem 1rem;
    border-radius: 50%;
    flex-shrink: 0;
    font-size: 1.2rem;
}

.faq-answer p {
    line-height: 1.8;
    color: var(--color-text-dark);
    padding-top: 0.3rem;
}

/* ===================================
   Contact Form Section
   =================================== */
.contact-form {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, var(--color-bg-beige) 0%, var(--color-bg-light) 100%);
}

.form-container {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-dark);
}

.required {
    background-color: #E74C3C;
    color: var(--color-white);
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    margin-left: var(--spacing-xs);
    font-weight: 700;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: var(--font-main);
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.checkbox-group {
    margin-top: var(--spacing-lg);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 400;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    cursor: pointer;
}

.link {
    color: var(--color-primary);
    text-decoration: underline;
}

.form-success {
    text-align: center;
    padding: var(--spacing-xl);
}

.success-icon {
    font-size: 5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    animation: scaleIn 0.5s ease;
}

.form-success h3 {
    font-size: 2rem;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-md);
}

.form-success p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-dark);
}

@keyframes scaleIn {
    0% {
        transform: scale(0);
    }
    100% {
        transform: scale(1);
    }
}

/* ===================================
   Company Section
   =================================== */
.company {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
}

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

.company-name {
    font-family: var(--font-accent);
    font-size: 2.5rem;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-md);
}

.company-name span {
    font-size: 1.5rem;
    color: var(--color-text-light);
}

.company-description {
    font-size: 1rem;
    line-height: 2;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.company-address {
    font-size: 1rem;
    color: var(--color-text-light);
    font-weight: 700;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.footer-copy {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
    opacity: 0.9;
}

.footer-company {
    font-size: 0.85rem;
    opacity: 0.8;
}

/* ===================================
   Floating CTA Button
   =================================== */
.floating-cta {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 999;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.floating-cta.show {
    opacity: 1;
    transform: translateY(0);
}

.floating-cta .btn {
    box-shadow: 0 4px 20px rgba(107, 142, 35, 0.4);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-title-accent {
        font-size: 2.2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .price-amount {
        font-size: 2.5rem;
    }
    
    .problem-grid,
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .session-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .session-category {
        font-size: 1.5rem;
    }
    
    .about-highlight h3 {
        font-size: 1.2rem;
    }
    
    .apply-box {
        padding: var(--spacing-md);
    }
    
    .apply-title {
        font-size: 1.5rem;
    }
    
    .apply-price-amount {
        font-size: 3rem;
    }
    
    .btn-large {
        padding: 1rem 2rem;
        font-size: 1.1rem;
    }
    
    .floating-cta {
        bottom: 10px;
        right: 10px;
    }
    
    .floating-cta .btn {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 1.6rem;
    }
    
    .hero-title-accent {
        font-size: 1.8rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .problem-item,
    .benefit-item {
        padding: var(--spacing-sm);
    }
    
    .form-container {
        padding: var(--spacing-md);
    }
}

/* Utility Classes */
.sp-only {
    display: none;
}

@media (max-width: 768px) {
    .sp-only {
        display: inline;
    }
}