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

body {
    font-family: 'Noto Sans JP', sans-serif;
    font-size: 16px;
    line-height: 1.8;
    color: #333;
    background-color: #fff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* ===================================
   ① ファーストビュー
=================================== */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 80px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.05);
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

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

.main-catchcopy {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: 24px;
    letter-spacing: 0.05em;
}

.sub-copy {
    font-size: 18px;
    font-weight: 400;
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0.95;
}

.hero-points {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 400px;
    margin: 0 auto;
}

.point-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.2);
    padding: 12px 20px;
    border-radius: 30px;
    backdrop-filter: blur(10px);
    font-size: 15px;
    font-weight: 500;
}

.point-item i {
    font-size: 18px;
}

/* ===================================
   ② 共感・問題提起セクション
=================================== */
.empathy-section {
    background-color: #f8f9fa;
    padding: 60px 0;
}

.problems-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
}

.problem-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #fff;
    padding: 16px 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    font-size: 16px;
    color: #555;
}

.problem-item i {
    color: #dc3545;
    font-size: 20px;
    flex-shrink: 0;
}

.empathy-message {
    text-align: center;
    background: #fff;
    padding: 32px 24px;
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.empathy-message p {
    font-size: 17px;
    line-height: 1.9;
    color: #333;
}

.empathy-message strong {
    color: #667eea;
    font-weight: 600;
}

/* ===================================
   ③ 解決の全体像セクション
=================================== */
.solution-section {
    background-color: #fff;
    padding: 60px 0;
}

.section-title {
    font-size: 26px;
    font-weight: 700;
    line-height: 1.6;
    text-align: center;
    margin-bottom: 24px;
    color: #333;
}

.section-description {
    font-size: 16px;
    line-height: 1.8;
    text-align: center;
    margin-bottom: 40px;
    color: #555;
}

.section-description strong {
    color: #667eea;
    font-weight: 600;
}

.options-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 24px;
}

.option-card {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 2px solid #e9ecef;
    border-radius: 16px;
    padding: 28px 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.option-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.15);
    border-color: #667eea;
}

.card-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.card-icon i {
    font-size: 28px;
    color: #fff;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
}

.card-description {
    font-size: 14px;
    color: #777;
    font-weight: 400;
}

.note-text {
    text-align: center;
    font-size: 14px;
    color: #999;
    margin-top: 16px;
}

/* ===================================
   ④ 安心・信頼セクション
=================================== */
.trust-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e3f2fd 100%);
    padding: 60px 0;
}

.trust-checklist {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

.check-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: #fff;
    padding: 16px 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    font-size: 16px;
    color: #333;
}

.check-item i {
    color: #28a745;
    font-size: 20px;
    flex-shrink: 0;
}

.trust-message {
    text-align: center;
    background: #fff;
    padding: 32px 24px;
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.trust-message p {
    font-size: 17px;
    line-height: 1.9;
    color: #333;
}

.trust-message strong {
    color: #667eea;
    font-weight: 600;
}

/* ===================================
   ⑤ 紹介コード入力・コピーセクション
=================================== */
.referral-section {
    background-color: #fff;
    padding: 60px 0;
}

.referral-input-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 500px;
    margin: 32px auto 16px;
}

.referral-input {
    width: 100%;
    padding: 16px 20px;
    font-size: 16px;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    outline: none;
    transition: all 0.3s ease;
    font-family: 'Noto Sans JP', sans-serif;
}

.referral-input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.copy-button {
    width: 100%;
    padding: 16px 24px;
    font-size: 16px;
    font-weight: 600;
    color: #667eea;
    background: #fff;
    border: 2px solid #667eea;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: 'Noto Sans JP', sans-serif;
}

.copy-button:hover {
    background: #667eea;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.copy-button:active {
    transform: translateY(0);
}

.copy-button.copied {
    background: #28a745;
    border-color: #28a745;
    color: #fff;
}

/* ===================================
   ⑥ CTAセクション
=================================== */
.cta-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 60px 0;
    text-align: center;
}

.cta-section .section-title {
    color: #fff;
    margin-bottom: 32px;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 20px 40px;
    font-size: 18px;
    font-weight: 600;
    color: #667eea;
    background: #fff;
    border: none;
    border-radius: 50px;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    margin-bottom: 24px;
}

.cta-button:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
}

.cta-button:active {
    transform: translateY(-2px);
}

.cta-button i {
    font-size: 24px;
}

.cta-notes {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.cta-notes p {
    font-size: 14px;
    opacity: 0.9;
}

/* ===================================
   フッター
=================================== */
.footer {
    background-color: #2c3e50;
    color: #fff;
    padding: 24px 0;
    text-align: center;
}

.footer p {
    font-size: 14px;
    opacity: 0.8;
}

/* ===================================
   レスポンシブ対応（タブレット・デスクトップ）
=================================== */
@media (min-width: 768px) {
    .main-catchcopy {
        font-size: 48px;
    }

    .sub-copy {
        font-size: 20px;
    }

    .hero-points {
        flex-direction: row;
        max-width: 100%;
        justify-content: center;
    }

    .section-title {
        font-size: 32px;
    }

    .section-description {
        font-size: 18px;
    }

    .options-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .referral-input-container {
        flex-direction: row;
        gap: 16px;
    }

    .referral-input {
        flex: 1;
    }

    .copy-button {
        width: auto;
        min-width: 180px;
    }

    .cta-button {
        font-size: 20px;
        padding: 24px 48px;
    }
}

@media (min-width: 1024px) {
    .options-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ===================================
   アニメーション
=================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.empathy-section,
.solution-section,
.trust-section,
.referral-section,
.cta-section {
    animation: fadeInUp 0.8s ease-out;
}