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

:root {
    /* パステルテーマカラーパレット */
    --primary: #f2b2b2;
    --primary-dark: #e8a0a0;
    --primary-light: #f8c8c8;
    --primary-accent: #d0e8f2;
    --secondary: #d0a8d0;
    --accent: #f2b2b2;
    --success: #a5d6a7;
    --success-dark: #81c784;
    --warning: #ffcc80;
    --warning-dark: #ffb74d;
    --danger: #ef9a9a;
    --danger-dark: #e57373;
    
    /* グレースケール（パステル調に調整） */
    --gray-50: #fef8f5;
    --gray-100: #f5f0ed;
    --gray-200: #f5e6d3;
    --gray-300: #e8d5c4;
    --gray-400: #c4a99a;
    --gray-500: #a1887f;
    --gray-600: #8d6e63;
    --gray-700: #6d4c41;
    --gray-800: #5d4037;
    --gray-900: #3e2723;
    
    /* テキスト（パステルテーマ） */
    --text-primary: #5d4037;
    --text-secondary: #8d6e63;
    --text-muted: #a1887f;
    
    /* 背景（パステルテーマ） */
    --bg-primary: #ffffff;
    --bg-secondary: #fef8f5;
    --bg-tertiary: #f5f0ed;
    
    /* ボーダー（パステルテーマ） */
    --border-color: #f5e6d3;
    --border-light: #faf5f0;
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --border-radius-sm: 8px;
    
    /* シャドウ（パステル調） */
    --shadow-sm: 0 1px 2px 0 rgba(242, 178, 178, 0.1);
    --shadow: 0 4px 6px -1px rgba(242, 178, 178, 0.15), 0 2px 4px -1px rgba(242, 178, 178, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(242, 178, 178, 0.2), 0 4px 6px -2px rgba(242, 178, 178, 0.15);
    --shadow-lg: 0 20px 25px -5px rgba(242, 178, 178, 0.25), 0 10px 10px -5px rgba(242, 178, 178, 0.2);
    --shadow-xl: 0 25px 50px -12px rgba(242, 178, 178, 0.3);
    
    /* スペーシング */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    --spacing-3xl: 6rem;
    
    /* タイポグラフィ */
    --font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', Meiryo, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* トランジション */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--text-primary);
    background: linear-gradient(135deg, #d0e8f2 0%, #f8e0e0 100%);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: 0.01em;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* ========================================
   ユーティリティクラス
   ======================================== */
.sp-only {
    display: none;
}

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

.pc-only {
    display: block;
}

@media (max-width: 768px) {
    .pc-only {
        display: none;
    }
}

/* ========================================
   ボタン
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    font-weight: 600;
    box-shadow: 0 4px 14px 0 rgba(242, 178, 178, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(242, 178, 178, 0.5);
}

.btn-outline {
    background: rgba(242, 178, 178, 0.15);
    color: var(--primary-dark);
    border: 1px solid rgba(242, 178, 178, 0.3);
    font-weight: 600;
}

.btn-outline:hover {
    background: rgba(242, 178, 178, 0.2);
    border-color: var(--primary);
    transform: translateY(-1px);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-sm);
}

.btn-block {
    width: 100%;
}

/* ========================================
   ナビゲーション
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(254, 248, 245, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
}

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

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

.logo-link {
    text-decoration: none;
    color: inherit;
}

.logo-text {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary);
}

@media (max-width: 768px) {
    .nav-links {
        gap: var(--spacing-sm);
    }
    
    .nav-link {
        font-size: var(--font-size-sm);
    }
}

/* ========================================
   ヒーローセクション
   ======================================== */
.hero {
    padding: 10rem 0 8rem;
    background: linear-gradient(135deg, #d0e8f2 0%, #f8e0e0 100%);
    color: var(--text-primary);
    margin-top: 60px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(242, 178, 178, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(208, 232, 242, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 2.75rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.03em;
}

.gradient-text {
    background: linear-gradient(135deg, #f2b2b2 0%, #d0a8d0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1rem;
    line-height: 1.9;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    letter-spacing: 0.01em;
}

.hero-note {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-bottom: var(--spacing-xl);
    letter-spacing: 0.01em;
}

.hero-note a {
    color: var(--primary-dark);
    text-decoration: underline;
    transition: var(--transition);
}

.hero-note a:hover {
    color: var(--primary);
    text-decoration: none;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

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

.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

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

.stat-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-accent) 100%);
    border: 2px solid var(--primary);
    box-shadow: var(--shadow-md);
    text-align: center;
    line-height: 1.2;
    padding: var(--spacing-xs);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Discord風モックアップ */
.discord-mockup {
    background-color: #36393f;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    width: 100%;
    max-width: 450px;
    color: #dcddde;
    font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.discord-header {
    background-color: #2f3136;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid rgba(0, 0, 0, 0.2);
}

.discord-server-name {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    font-size: var(--font-size-base);
    color: #ffffff;
}

.server-icon {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.discord-content {
    padding: var(--spacing-md);
    background-color: #36393f;
    min-height: 200px;
}

.discord-message {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    opacity: 0.6;
    transition: var(--transition);
    padding: var(--spacing-xs);
    border-radius: var(--border-radius-sm);
}

.discord-message:hover {
    background-color: rgba(4, 4, 5, 0.07);
}

.discord-message.active {
    opacity: 1;
    background-color: rgba(242, 178, 178, 0.1);
    border-left: 3px solid var(--primary);
    padding-left: calc(var(--spacing-xs) - 3px);
}

.discord-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}

.discord-avatar.reading {
    background: linear-gradient(135deg, #5865f2 0%, #4752c4 100%);
    font-size: 20px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.9;
    }
}

.discord-message-content {
    flex: 1;
    min-width: 0;
}

.discord-message-header {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-xs);
    margin-bottom: 4px;
}

.discord-username {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: #ffffff;
}

.discord-timestamp {
    font-size: 0.75rem;
    color: #72767d;
}

.discord-message-text {
    font-size: var(--font-size-sm);
    color: #dcddde;
    line-height: 1.375;
    word-wrap: break-word;
}

.discord-message.active .discord-username {
    color: var(--primary-light);
}

.discord-message.active .discord-timestamp {
    color: var(--primary);
    font-weight: 500;
}

.reading-text {
    color: #ffffff;
    font-weight: 500;
    position: relative;
}

.reading-text::after {
    content: ' 🔊';
    animation: blink 1.5s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
}

@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 6rem 0 4rem;
    }
    
    .hero-title {
        font-size: 2rem;
        line-height: 1.3;
        margin-bottom: var(--spacing-md);
    }
    
    .hero-description {
        font-size: 0.9375rem;
        margin-bottom: var(--spacing-lg);
    }
    
    .hero-cta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .hero-cta .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: var(--font-size-base);
    }
    
    .btn-features {
        display: none;
    }
    
    /* スマホ表示ではレビュー部分を非表示 */
    .hero-visual {
        display: none;
    }
}

/* ========================================
   セクション共通
   ======================================== */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    letter-spacing: -0.02em;
    line-height: 1.3;
}

.section-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    line-height: 1.8;
    letter-spacing: 0.01em;
}

@media (max-width: 768px) {
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-description {
        font-size: var(--font-size-base);
    }
}

/* ========================================
   サービス一覧セクション
   ======================================== */
.services {
    background-color: var(--bg-primary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.service-card {
    background-color: var(--bg-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(242, 178, 178, 0.3);
}

.service-card.featured {
    border: 3px solid var(--primary);
    background: linear-gradient(135deg, rgba(254, 248, 245, 1) 0%, rgba(255, 255, 255, 1) 100%);
}

.service-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    display: inline-block;
    transition: transform 0.3s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    letter-spacing: -0.01em;
    line-height: 1.4;
}

.service-description {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
    letter-spacing: 0.01em;
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
}

.service-tag {
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: #ffffff;
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border: 1px solid rgba(242, 178, 178, 0.5);
    box-shadow: 0 2px 4px rgba(242, 178, 178, 0.2);
}

.service-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .service-card {
        padding: var(--spacing-xl);
    }
    
    .service-actions {
        flex-direction: column;
    }
    
    .service-actions .btn {
        width: 100%;
    }
}

/* ========================================
   機能紹介セクション
   ======================================== */
.features {
    background-color: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.feature-card {
    background-color: var(--bg-primary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-accent) 100%);
    transform: scaleX(0);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(242, 178, 178, 0.2);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-lg);
    display: inline-block;
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    letter-spacing: -0.01em;
    line-height: 1.4;
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.8;
    letter-spacing: 0.01em;
}

@media (max-width: 968px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   使いやすさセクション
   ======================================== */
.usability {
    background-color: var(--bg-primary);
}

.usability-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.usability-card {
    display: flex;
    justify-content: center;
}

.usability-card .card-screen {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    width: 100%;
    max-width: 400px;
}

.screen-header {
    background-color: var(--gray-600);
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--gray-500);
}

.screen-dots {
    display: flex;
    gap: var(--spacing-xs);
}

.screen-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--gray-500);
}

.screen-dots span:nth-child(1) {
    background-color: #ef4444;
}

.screen-dots span:nth-child(2) {
    background-color: #f59e0b;
}

.screen-dots span:nth-child(3) {
    background-color: #10b981;
}

.screen-content {
    padding: var(--spacing-lg);
    background-color: var(--bg-primary);
}

.setting-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.setting-item:last-child {
    margin-bottom: 0;
}

.setting-label {
    font-weight: 500;
    color: var(--text-primary);
}

.setting-toggle {
    width: 48px;
    height: 24px;
    background-color: var(--gray-300);
    border-radius: 12px;
    position: relative;
    transition: var(--transition);
}

.setting-toggle.active {
    background-color: var(--primary);
}

.setting-toggle::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: white;
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: var(--transition);
}

.setting-toggle.active::after {
    left: 26px;
}

.setting-channels {
    display: flex;
    gap: var(--spacing-xs);
}

.channel-tag {
    padding: 0.25rem 0.75rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.usability-list {
    list-style: none;
    margin-top: var(--spacing-lg);
}

.usability-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
}

.list-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
}

.usability-visual-mobile {
    display: none;
}

@media (max-width: 768px) {
    .usability-content {
        grid-template-columns: 1fr;
    }
    
    .usability-visual {
        display: none;
    }
    
    .usability-visual-mobile {
        display: flex;
        justify-content: center;
        margin: var(--spacing-xl) 0;
    }
    
    /* スマホ表示時のウィンドウサイズを小さく */
    .usability-visual-mobile .card-screen {
        max-width: 300px;
        transform: scale(0.9);
    }
    
    /* スマホ表示時のウィンドウ内の文字サイズを小さく */
    .usability-visual-mobile .screen-header {
        padding: 0.5rem;
    }
    
    .usability-visual-mobile .setting-item {
        padding: 0.75rem;
        margin-bottom: 0.5rem;
    }
    
    .usability-visual-mobile .setting-label {
        font-size: 0.8rem;
        line-height: 1.4;
    }
    
    .usability-visual-mobile .channel-tag {
        padding: 0.2rem 0.5rem;
        font-size: 0.7rem;
        white-space: nowrap;
    }
    
    .usability-visual-mobile .setting-channels {
        gap: 0.25rem;
        flex-wrap: nowrap;
    }
}

@media (max-width: 968px) and (min-width: 769px) {
    .usability-content {
        grid-template-columns: 1fr;
    }
    
    .usability-visual {
        order: -1;
    }
}

/* ========================================
   安定性・信頼性セクション
   ======================================== */
.reliability {
    background-color: var(--bg-secondary);
}

.reliability-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.reliability-item {
    text-align: center;
    padding: var(--spacing-xl);
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reliability-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-lg);
    display: inline-block;
    transition: transform 0.3s ease;
}

.reliability-item:hover .reliability-icon {
    transform: scale(1.1);
}

.reliability-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    letter-spacing: -0.01em;
    line-height: 1.4;
}

.reliability-description {
    color: var(--text-secondary);
    line-height: 1.8;
    letter-spacing: 0.01em;
}

@media (max-width: 768px) {
    .reliability-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   使用シーンセクション
   ======================================== */
.use-cases {
    background-color: var(--bg-primary);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.use-case-card {
    background-color: var(--bg-secondary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid transparent;
}

.use-case-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(242, 178, 178, 0.2);
}

.use-case-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-lg);
    display: inline-block;
    transition: transform 0.3s ease;
}

.use-case-card:hover .use-case-icon {
    transform: scale(1.1) rotate(-5deg);
}

.use-case-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    letter-spacing: -0.01em;
    line-height: 1.4;
}

.use-case-description {
    color: var(--text-secondary);
    line-height: 1.8;
    letter-spacing: 0.01em;
}

@media (max-width: 768px) {
    .use-cases-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   料金プランセクション
   ======================================== */
.pricing {
    background: linear-gradient(135deg, #d0e8f2 0%, #f8e0e0 100%);
    color: var(--text-primary);
}

.pricing .section-title,
.pricing .section-description {
    color: var(--text-primary);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    background-color: white;
    color: var(--text-primary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(242, 178, 178, 0.3);
}

.pricing-card.featured {
    border: 3px solid var(--primary);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    right: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    padding: 0.25rem 1rem;
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 600;
    box-shadow: 0 4px 14px 0 rgba(242, 178, 178, 0.4);
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.pricing-name {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.pricing-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--spacing-xs);
}

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

.price-period {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

.pricing-features {
    list-style: none;
    margin-bottom: var(--spacing-lg);
}

.pricing-features li {
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

@media (max-width: 768px) {
    .pricing-grid {
        grid-template-columns: 1fr;
    }
}

.pricing-note {
    text-align: center;
    margin-top: var(--spacing-xl);
    font-size: var(--font-size-sm);
    opacity: 0.9;
}

.pricing-note p {
    margin-bottom: var(--spacing-xs);
}

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

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

.faq-item {
    background-color: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: var(--bg-secondary);
}

.faq-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-base);
    flex-shrink: 0;
}

.faq-text {
    flex: 1;
    font-weight: 600;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
}

.faq-toggle {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    font-weight: 300;
    color: var(--primary);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 var(--spacing-lg);
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

.faq-answer code {
    background-color: var(--bg-secondary);
    padding: 0.125rem 0.375rem;
    border-radius: var(--border-radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 0.875em;
    color: var(--primary-dark);
}

@media (max-width: 768px) {
    .faq-question {
        padding: var(--spacing-md);
    }
    
    .faq-text {
        font-size: var(--font-size-base);
    }
    
    .faq-item.active .faq-answer {
        padding: 0 var(--spacing-md) var(--spacing-md);
    }
}

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

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    letter-spacing: -0.02em;
    line-height: 1.3;
}

.cta-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.9;
    letter-spacing: 0.01em;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

@media (max-width: 768px) {
    .cta-title {
        font-size: var(--font-size-3xl);
    }
    
    .cta-description {
        font-size: var(--font-size-base);
    }
    
    .cta-buttons {
        flex-direction: column;
    }
}

/* ========================================
   フッター
   ======================================== */
.footer {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

.footer-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
    }
}

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

.feature-card,
.reliability-item,
.use-case-card {
    animation: fadeInUp 0.6s ease-out;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }
.feature-card:nth-child(4) { animation-delay: 0.4s; }
.feature-card:nth-child(5) { animation-delay: 0.5s; }
.feature-card:nth-child(6) { animation-delay: 0.6s; }