/* ===================================
   リセットとベーススタイル
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* カラーパレット - クールでアカデミックな配色 */
    --primary-color: #1a365d;
    --primary-dark: #0f2744;
    --primary-light: #2c5282;
    --accent-color: #2563eb;
    --accent-light: #3b82f6;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-light: #718096;
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-dark: #0f172a;
    --border-color: #e2e8f0;
    --success-color: #10b981;
    --highlight-color: #fbbf24;
    
    /* タイポグラフィ */
    --font-primary: 'Noto Sans JP', sans-serif;
    --font-serif: 'Noto Serif JP', serif;
    
    /* スペーシング */
    --section-padding: 100px 0;
    --container-max-width: 1200px;
    
    /* トランジション */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-primary);
    color: var(--text-primary);
    line-height: 1.8;
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ===================================
   ヒーローセクション
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="60" height="60" patternUnits="userSpaceOnUse"><path d="M 60 0 L 0 0 0 60" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    max-width: 900px;
    padding: 40px 20px;
}

.hero-label {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(37, 99, 235, 0.2);
    border: 1px solid rgba(37, 99, 235, 0.4);
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 1px;
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 30px;
    letter-spacing: 0.02em;
}

.hero-title .highlight {
    color: var(--accent-light);
    position: relative;
    display: inline-block;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    font-weight: 300;
    line-height: 1.8;
    margin-bottom: 50px;
    opacity: 0.9;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-light);
    margin-bottom: 5px;
    font-family: var(--font-serif);
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
    letter-spacing: 0.5px;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.75rem;
    letter-spacing: 2px;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.5));
    animation: scrollAnimation 2s infinite;
}

@keyframes scrollAnimation {
    0%, 100% {
        opacity: 0;
        transform: translateY(-10px);
    }
    50% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   ボタンスタイル
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: none;
    font-family: var(--font-primary);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: white;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(37, 99, 235, 0.4);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.1rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ===================================
   セクション共通スタイル
   =================================== */
section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 20px;
    line-height: 1.3;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* ===================================
   対象者セクション
   =================================== */
.target-audience {
    background-color: var(--bg-secondary);
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.audience-card {
    background: white;
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    transition: var(--transition-smooth);
    border: 1px solid var(--border-color);
}

.audience-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.audience-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
}

.audience-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.audience-text {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===================================
   問題提起セクション
   =================================== */
.problem {
    background: linear-gradient(135deg, var(--bg-dark) 0%, #1e293b 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.problem::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.problem-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.problem-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    line-height: 1.4;
}

.problem-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.problem-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px 30px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border-left: 4px solid rgba(239, 68, 68, 0.5);
    backdrop-filter: blur(10px);
    font-size: 1.1rem;
}

.problem-item i {
    color: rgba(239, 68, 68, 0.8);
    font-size: 1.5rem;
    flex-shrink: 0;
}

/* ===================================
   ソリューションセクション
   =================================== */
.solution {
    background-color: var(--bg-primary);
}

.solution-lead {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 20px auto 60px;
    line-height: 1.8;
}

.solution-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    padding: 40px 30px;
    background: white;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

.feature-card:hover {
    border-color: var(--accent-color);
    box-shadow: 0 10px 40px rgba(37, 99, 235, 0.1);
}

.feature-number {
    display: inline-block;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.feature-text {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===================================
   講座内容セクション
   =================================== */
.contents {
    background-color: var(--bg-secondary);
}

.contents-main {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.content-item {
    background: white;
    padding: 40px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition-smooth);
    position: relative;
}

.content-item.main-content {
    grid-column: span 2;
}

.content-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.content-badge {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: white;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.content-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(59, 130, 246, 0.1));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.content-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 15px;
    line-height: 1.4;
}

.content-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.spec-tag {
    padding: 6px 14px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent-color);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.content-price {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(251, 191, 36, 0.1);
    color: #d97706;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.content-description {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.content-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.content-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
}

.content-features i {
    color: var(--success-color);
    font-size: 0.9rem;
}

/* ===================================
   無料特典セクション
   =================================== */
.bonus {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    color: white;
}

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

.bonus .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.bonus-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.bonus-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px 30px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    transition: var(--transition-smooth);
    text-align: center;
}

.bonus-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-5px);
}

.bonus-label {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(251, 191, 36, 0.2);
    color: var(--highlight-color);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.bonus-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-light);
    font-size: 2rem;
}

.bonus-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.4;
}

.bonus-value {
    display: inline-block;
    padding: 5px 12px;
    background: rgba(251, 191, 36, 0.2);
    color: var(--highlight-color);
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.bonus-text {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

/* ===================================
   監修者紹介セクション
   =================================== */
.instructor {
    background-color: var(--bg-primary);
}

.instructor-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 60px;
    align-items: center;
}

.instructor-image {
    position: relative;
}

.instructor-placeholder {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 8rem;
}

.instructor-label {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent-color);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.instructor-name {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.instructor-title {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.6;
}

.instructor-achievements {
    display: flex;
    gap: 40px;
    margin-bottom: 30px;
}

.achievement-item {
    text-align: left;
}

.achievement-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 5px;
    font-family: var(--font-serif);
}

.achievement-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.instructor-description {
    color: var(--text-secondary);
    line-height: 1.9;
}

/* ===================================
   価格セクション
   =================================== */
.pricing {
    background-color: var(--bg-secondary);
}

.pricing-value {
    max-width: 700px;
    margin: 0 auto 60px;
    background: white;
    padding: 40px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.value-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 30px;
}

.value-breakdown {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.value-item {
    display: flex;
    justify-content: space-between;
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

.value-amount {
    font-weight: 600;
    color: var(--accent-color);
}

.value-total {
    display: flex;
    justify-content: space-between;
    padding: 20px 0 0;
    font-size: 1.3rem;
    font-weight: 700;
}

.total-amount {
    color: var(--accent-color);
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.pricing-card {
    background: white;
    padding: 40px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition-smooth);
    position: relative;
}

.pricing-card.featured {
    border: 2px solid var(--accent-color);
    box-shadow: 0 10px 40px rgba(37, 99, 235, 0.2);
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 20px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
    color: white;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
}

.pricing-badge.special {
    background: linear-gradient(135deg, #dc2626, #ef4444);
}

.pricing-discount {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 8px 16px;
    background: linear-gradient(135deg, #dc2626, #ef4444);
    color: white;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 700;
}

.pricing-header {
    text-align: center;
    margin-bottom: 30px;
}

.pricing-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 10px;
}

.price-currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.price-amount {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color);
    font-family: var(--font-serif);
}

.price-tax {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-left: 5px;
}

.pricing-original {
    text-decoration: line-through;
    color: var(--text-light);
    font-size: 1.1rem;
}

.pricing-timer {
    background: rgba(37, 99, 235, 0.05);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
}

.timer-label {
    text-align: center;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.timer-display {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.timer-unit {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.timer-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
    font-family: var(--font-serif);
    line-height: 1;
}

.timer-text {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 5px;
}

.timer-separator {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
    padding: 0 5px;
}

.pricing-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 30px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 1rem;
}

.pricing-features i {
    color: var(--success-color);
    font-size: 1.1rem;
}

.pricing-features i.special-feature {
    color: var(--highlight-color);
}

.pricing-note {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 30px;
    background: rgba(37, 99, 235, 0.05);
    border-left: 4px solid var(--accent-color);
    border-radius: 8px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.pricing-note i {
    color: var(--accent-color);
    margin-right: 5px;
}

/* ===================================
   FAQ セクション
   =================================== */
.faq {
    background-color: var(--bg-primary);
}

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

.faq-item {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 15px;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.faq-item:hover {
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

.faq-question {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 25px 30px;
    cursor: pointer;
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.1rem;
    user-select: none;
}

.faq-question i:first-child {
    color: var(--accent-color);
    font-size: 1.3rem;
    flex-shrink: 0;
}

.faq-toggle {
    margin-left: auto;
    color: var(--text-light);
    transition: var(--transition-smooth);
}

.faq-item.active .faq-toggle {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 30px 25px 58px;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===================================
   最終CTA セクション
   =================================== */
.final-cta {
    background: linear-gradient(135deg, var(--bg-dark) 0%, #1e293b 100%);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.final-cta::before {
    content: '';
    position: absolute;
    top: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.final-cta::after {
    content: '';
    position: absolute;
    bottom: -30%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 30px;
    line-height: 1.4;
}

.cta-text {
    font-size: 1.1rem;
    line-height: 1.9;
    margin-bottom: 40px;
    opacity: 0.9;
}

.cta-buttons {
    margin-bottom: 30px;
}

.cta-guarantee {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 25px;
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.3);
    border-radius: 30px;
    color: var(--highlight-color);
    font-size: 0.95rem;
    font-weight: 500;
}

.cta-guarantee i {
    font-size: 1.2rem;
}

/* ===================================
   フッター
   =================================== */
.footer {
    background-color: var(--bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-brand h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: white;
    margin-bottom: 5px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
}

.footer-links {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition-smooth);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* ===================================
   レスポンシブデザイン
   =================================== */
@media (max-width: 1024px) {
    .instructor-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .instructor-placeholder {
        margin: 0 auto;
    }
    
    .instructor-achievements {
        justify-content: center;
    }
    
    .achievement-item {
        text-align: center;
    }
    
    .content-item.main-content {
        grid-column: span 1;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
    }
    
    .hero-stats {
        gap: 30px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .audience-grid,
    .solution-features,
    .bonus-grid,
    .pricing-cards {
        grid-template-columns: 1fr;
    }
    
    .contents-main {
        grid-template-columns: 1fr;
    }
    
    .instructor-placeholder {
        width: 250px;
        height: 250px;
        font-size: 6rem;
    }
    
    .instructor-name {
        font-size: 2.5rem;
    }
    
    .instructor-achievements {
        flex-direction: column;
        gap: 20px;
    }
    
    .price-amount {
        font-size: 3rem;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .problem-item {
        padding: 15px 20px;
        font-size: 1rem;
    }
    
    .timer-display {
        gap: 5px;
    }
    
    .timer-value {
        font-size: 1.5rem;
    }
    
    .timer-text {
        font-size: 0.7rem;
    }
    
    .pricing-card {
        padding: 30px 20px;
    }
    
    .faq-answer p {
        padding: 0 20px 20px 45px;
    }
}