/* ==========================================
   基本設定
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1e3a8a; /* ネイビー（信頼） */
    --secondary-color: #10b981; /* グリーン（成長） */
    --accent-color: #f97316; /* オレンジ（アクション） */
    --text-color: #333;
    --text-light: #666;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    color: var(--text-color);
    line-height: 1.7;
    background: var(--bg-white);
}

html {
    scroll-behavior: smooth;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ==========================================
   ヘッダー
   ========================================== */
.header {
    background: var(--bg-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.btn-header {
    background: var(--accent-color);
    color: white;
    padding: 10px 24px;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s;
    font-size: 0.9rem;
}

.btn-header:hover {
    background: #ea580c;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* ==========================================
   ボタン共通スタイル
   ========================================== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    text-align: center;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
}

.btn-primary:hover {
    background: #ea580c;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: 18px 48px;
    font-size: 1.1rem;
}

.btn-cta {
    background: var(--accent-color);
    color: white;
    padding: 20px 60px;
    font-size: 1.3rem;
    border-radius: 12px;
}

.btn-cta:hover {
    background: #ea580c;
    transform: scale(1.05);
}

.btn i {
    margin-right: 8px;
}

/* ==========================================
   ファーストビュー
   ========================================== */
.hero {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    color: white;
    padding: 100px 0 120px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.05)" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,165.3C1248,149,1344,107,1392,85.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero-label {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 24px;
    border-radius: 50px;
    font-size: 0.9rem;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-title {
    font-size: 3rem;
    font-weight: 900;
    line-height: 1.3;
    margin-bottom: 24px;
}

.hero-title .highlight {
    color: #fbbf24;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.4rem;
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0.95;
}

.hero-price {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 30px;
    border-radius: 16px;
    display: inline-block;
    margin-bottom: 40px;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.price-label {
    font-size: 0.95rem;
    margin-bottom: 10px;
    opacity: 0.9;
}

.price-normal {
    font-size: 1.1rem;
    margin-bottom: 10px;
    text-decoration: line-through;
    opacity: 0.7;
}

.price-normal .price-value {
    font-size: 1.5rem;
    font-weight: 700;
}

.price-early {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.price-value-early {
    font-size: 2.5rem;
    font-weight: 900;
    color: #fbbf24;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.price-note {
    font-size: 0.9rem;
    opacity: 0.85;
}

.hero-info {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 40px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
}

.info-item i {
    font-size: 1.2rem;
    color: #fbbf24;
}

/* ==========================================
   セクション共通
   ========================================== */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 60px;
    color: var(--primary-color);
    line-height: 1.4;
}

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

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

/* ==========================================
   共感パート（悩み）
   ========================================== */
.problems {
    background: var(--bg-light);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.problem-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: all 0.3s;
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.problem-icon {
    font-size: 3rem;
    color: #ef4444;
    margin-bottom: 20px;
}

.problem-card p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-color);
}

.problem-card strong {
    color: #ef4444;
    font-weight: 700;
}

/* ==========================================
   問題提起
   ========================================== */
.reason {
    background: white;
}

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

.reason-box {
    background: #fef2f2;
    border: 2px solid #ef4444;
    border-radius: 12px;
    padding: 40px;
    margin-bottom: 40px;
}

.reason-box h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ef4444;
    margin-bottom: 24px;
    text-align: center;
}

.reason-list {
    list-style: none;
}

.reason-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.reason-list i {
    font-size: 1.3rem;
    color: #ef4444;
}

.reason-arrow {
    text-align: center;
    margin: 40px 0;
}

.reason-arrow i {
    font-size: 3rem;
    color: var(--primary-color);
}

.reason-arrow p {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-color);
    margin-top: 10px;
}

.reason-result {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 30px;
}

.result-item {
    text-align: center;
    flex: 1;
    min-width: 200px;
}

.result-item i {
    font-size: 3rem;
    color: #ef4444;
    margin-bottom: 15px;
}

.result-item p {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-color);
}

/* ==========================================
   解決策の提示
   ========================================== */
.solution {
    background: var(--bg-light);
}

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

.solution-intro {
    text-align: center;
    margin-bottom: 50px;
}

.solution-intro h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 24px;
}

.solution-description {
    font-size: 1.3rem;
    line-height: 1.8;
    color: var(--text-color);
}

.solution-stats {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 60px;
}

.stat-item {
    text-align: center;
    flex: 1;
    min-width: 200px;
}

.stat-number {
    font-size: 3rem;
    font-weight: 900;
    color: var(--accent-color);
    margin-bottom: 10px;
}

.stat-icon {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1rem;
    color: var(--text-light);
    line-height: 1.6;
}

.solution-flow {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.solution-flow h4 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 30px;
}

.flow-items {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

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

.flow-number {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 10px;
}

.flow-item p {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-color);
}

.flow-arrow {
    font-size: 2rem;
    color: var(--secondary-color);
}

/* ==========================================
   ベネフィット
   ========================================== */
.benefits {
    background: white;
}

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

.benefit-card {
    background: var(--bg-light);
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s;
    border: 2px solid transparent;
    position: relative;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary-color);
}

.benefit-number {
    position: absolute;
    top: 10px;
    left: 10px;
    width: 40px;
    height: 40px;
    background: var(--accent-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
}

.benefit-icon {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.benefit-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-color);
    line-height: 1.6;
}

/* ==========================================
   カリキュラム
   ========================================== */
.curriculum {
    background: var(--bg-light);
}

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

.curriculum-item {
    background: white;
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.curriculum-header {
    display: flex;
    align-items: center;
    padding: 25px 30px;
    cursor: pointer;
    transition: all 0.3s;
}

.curriculum-header:hover {
    background: var(--bg-light);
}

.curriculum-number {
    background: var(--primary-color);
    color: white;
    padding: 8px 20px;
    border-radius: 50px;
    font-weight: 700;
    margin-right: 20px;
    white-space: nowrap;
}

.curriculum-header h3 {
    flex: 1;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-color);
}

.curriculum-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
    transition: transform 0.3s;
}

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

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

.curriculum-item.active .curriculum-body {
    max-height: 500px;
    transition: max-height 0.5s ease-in;
}

.curriculum-body ul {
    list-style: none;
    padding: 0 30px 30px 30px;
}

.curriculum-body li {
    padding: 12px 0 12px 30px;
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

.curriculum-body li:last-child {
    border-bottom: none;
}

.curriculum-body li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
    font-weight: 700;
    font-size: 1.2rem;
}

/* ==========================================
   講師紹介
   ========================================== */
.instructor {
    background: white;
}

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

.instructor-card {
    background: var(--bg-light);
    padding: 50px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 30px;
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.instructor-card.staff {
    padding: 30px;
    background: white;
    border: 2px solid var(--border-color);
}

.instructor-photo {
    flex-shrink: 0;
}

.photo-placeholder {
    width: 180px;
    height: 180px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
}

.instructor-info {
    flex: 1;
}

.instructor-name {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.instructor-title {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 24px;
}

.staff-note {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 5px;
}

.instructor-profile h4,
.instructor-message h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
    margin-top: 20px;
}

.instructor-profile ul {
    list-style: none;
}

.instructor-profile li {
    padding: 8px 0 8px 25px;
    position: relative;
}

.instructor-profile li::before {
    content: '●';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
}

.instructor-message p {
    line-height: 1.8;
    color: var(--text-color);
}

/* ==========================================
   受講生の声
   ========================================== */
.testimonials {
    background: var(--bg-light);
}

.testimonials-note {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 40px;
    font-style: italic;
}

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

.testimonial-card {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: all 0.3s;
}

.testimonial-card.placeholder {
    opacity: 0.7;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.testimonial-photo {
    width: 80px;
    height: 80px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto 20px;
}

.testimonial-content h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
    text-align: center;
}

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

/* ==========================================
   FAQ
   ========================================== */
.faq {
    background: white;
}

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

.faq-item {
    background: var(--bg-light);
    border-radius: 12px;
    margin-bottom: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    cursor: pointer;
    transition: all 0.3s;
}

.faq-question:hover {
    background: #f3f4f6;
}

.faq-question h3 {
    flex: 1;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.faq-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
    transition: transform 0.3s;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

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

.faq-item.active .faq-answer {
    max-height: 500px;
    transition: max-height 0.5s ease-in;
}

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

/* ==========================================
   CTA（申込セクション）
   ========================================== */
.cta {
    background: linear-gradient(135deg, var(--primary-color) 0%, #3b82f6 100%);
    color: white;
    padding: 100px 0;
}

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

.cta-price {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 16px;
    text-align: center;
    margin-bottom: 40px;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.cta-price-label {
    font-size: 1.2rem;
    margin-bottom: 15px;
    opacity: 0.9;
}

.cta-price-normal {
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.cta-price-normal .strike {
    text-decoration: line-through;
    opacity: 0.7;
}

.cta-price-special {
    margin-top: 20px;
}

.cta-price-arrow {
    font-size: 2rem;
    margin-bottom: 10px;
}

.cta-price-early {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.cta-price-value {
    font-size: 3.5rem;
    font-weight: 900;
    color: #fbbf24;
    display: block;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.cta-price-note {
    font-size: 1rem;
    opacity: 0.85;
}

.cta-benefits {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 12px;
    margin-bottom: 40px;
}

.cta-benefits h3 {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
}

.cta-benefits-list {
    list-style: none;
}

.cta-benefits-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 0;
    font-size: 1.1rem;
}

.cta-benefits-list i {
    font-size: 1.5rem;
    color: #fbbf24;
}

.cta-buttons {
    text-align: center;
    margin-bottom: 40px;
}

.cta-contact {
    margin-top: 20px;
    font-size: 1rem;
    opacity: 0.9;
}

.cta-contact a {
    color: #fbbf24;
    text-decoration: underline;
}

.cta-guarantee {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 30px;
}

.guarantee-item {
    text-align: center;
    flex: 1;
    min-width: 200px;
}

.guarantee-item i {
    font-size: 3rem;
    color: #fbbf24;
    margin-bottom: 10px;
}

.guarantee-item p {
    font-size: 1rem;
}

/* ==========================================
   フッター
   ========================================== */
.footer {
    background: #1f2937;
    color: white;
    padding: 50px 0;
}

.footer-content {
    text-align: center;
}

.footer-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.footer-subtitle {
    font-size: 1rem;
    opacity: 0.8;
    margin-bottom: 20px;
}

.footer-contact {
    margin-bottom: 10px;
}

.footer-contact a {
    color: #fbbf24;
    text-decoration: none;
}

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

.footer-note {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-bottom: 20px;
}

.footer-copyright {
    font-size: 0.9rem;
    opacity: 0.6;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

/* ==========================================
   トップへ戻るボタン
   ========================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 999;
}

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

.back-to-top:hover {
    background: #ea580c;
    transform: translateY(-5px);
}

/* ==========================================
   レスポンシブデザイン
   ========================================== */

/* タブレット */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .hero-info {
        flex-direction: column;
        gap: 15px;
    }

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

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

    .flow-arrow {
        transform: rotate(90deg);
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .btn-large {
        padding: 16px 32px;
        font-size: 1rem;
    }

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

/* スマートフォン */
@media (max-width: 480px) {
    .hero {
        padding: 60px 0 80px;
    }

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

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.5rem;
        margin-bottom: 40px;
    }

    .price-value-early {
        font-size: 2rem;
    }

    .cta-price-value {
        font-size: 2.5rem;
    }

    .header-content {
        flex-direction: column;
        gap: 15px;
    }

    .logo {
        font-size: 1.1rem;
    }

    .btn-header {
        font-size: 0.85rem;
        padding: 8px 20px;
    }

    section {
        padding: 60px 0;
    }

    .problems-grid,
    .benefits-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

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

    .photo-placeholder {
        width: 120px;
        height: 120px;
        font-size: 3.5rem;
    }

    .curriculum-header {
        padding: 20px;
    }

    .curriculum-number {
        font-size: 0.85rem;
        padding: 6px 14px;
    }

    .curriculum-header h3 {
        font-size: 1.1rem;
    }

    .faq-question {
        padding: 20px;
    }

    .faq-question h3 {
        font-size: 1rem;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1.3rem;
    }
}