/* ===================================
   Privacy Policy Page Styles
   =================================== */

/* Color Palette */
:root {
    /* Brand Colors v5 - Warm Brown Beige Tone */
    --primary: #D4A574;
    --primary-dark: #B8936A;
    --primary-light: #E8C9A8;
    --background: #FFF9F5;
    --white: #FFFFFF;
    --text-primary: #4A3729;
    --text-secondary: #8B6F5C;
    --accent: #C4B5E8;
    
    /* Semantic Colors */
    --border-light: rgba(212, 165, 116, 0.2);
    --shadow-subtle: rgba(74, 55, 41, 0.08);
    --shadow-medium: rgba(74, 55, 41, 0.12);
    
    /* Typography */
    --font-primary: 'Noto Sans JP', sans-serif;
    --font-secondary: 'M PLUS Rounded 1c', sans-serif;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-primary);
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===================================
   Header
   =================================== */
.header {
    position: sticky;
    top: 0;
    background: rgba(255, 249, 245, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    padding: 16px 0;
    z-index: 1000;
    transition: var(--transition);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: var(--transition);
}

.logo:hover {
    transform: translateY(-2px);
}

.logo-image {
    width: 45px;
    height: 45px;
    object-fit: contain;
    background-color: transparent;
    mix-blend-mode: multiply;
    opacity: 1;
    filter: contrast(1.1) brightness(0.98);
}

.logo-text-group {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.logo-text {
    font-family: var(--font-secondary);
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
}

.logo-subtitle {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1;
}

nav {
    display: flex;
    gap: 24px;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

/* ===================================
   Privacy Main Content
   =================================== */
.privacy-main {
    padding: 60px 0 80px;
}

/* Page Header */
.privacy-header {
    text-align: center;
    margin-bottom: 60px;
    padding: 40px 20px;
    background: linear-gradient(135deg, #FFFBF7 0%, #FFF5ED 100%);
    border-radius: 20px;
}

.page-title {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-family: var(--font-secondary);
}

.page-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    font-weight: 400;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.update-date {
    display: inline-block;
    padding: 8px 20px;
    background-color: var(--white);
    border-radius: 20px;
    font-size: 14px;
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
}

/* Section Styles */
.privacy-section {
    margin-bottom: 48px;
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-title {
    font-size: 26px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-secondary);
}

.article-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 80px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    color: var(--white);
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    padding: 0 16px;
}

.section-content {
    background-color: var(--white);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border-light);
    box-shadow: 0 4px 12px var(--shadow-subtle);
}

.section-content p {
    color: var(--text-primary);
    line-height: 1.8;
}

/* Intro Box */
.intro-box {
    background: linear-gradient(135deg, #FFFBF7 0%, #FFF5ED 100%);
    padding: 32px;
    border-radius: 16px;
    border: 2px solid var(--primary-light);
}

.intro-text {
    font-size: 15px;
    line-height: 1.9;
    color: var(--text-primary);
}

/* Subsection Title */
.subsection-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    margin-top: 24px;
    padding-left: 12px;
    border-left: 4px solid var(--primary);
}

/* Lists */
.info-list,
.disclosure-list,
.vendor-list,
.cookie-list {
    list-style: none;
    padding-left: 0;
}

.info-list > li,
.cookie-list > li {
    margin-bottom: 20px;
    padding-left: 20px;
    position: relative;
}

.info-list > li::before {
    content: '●';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-size: 14px;
}

.sublist {
    list-style: none;
    margin-top: 8px;
    margin-left: 16px;
}

.sublist li {
    padding: 6px 0 6px 20px;
    position: relative;
    color: var(--text-secondary);
    font-size: 14px;
}

.sublist li::before {
    content: '・';
    position: absolute;
    left: 0;
    color: var(--primary-dark);
}

/* Purpose List */
.purpose-list {
    list-style: none;
    padding: 0;
}

.purpose-list li {
    display: flex;
    gap: 16px;
    padding: 20px;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #FFFBF7 0%, #FFFFFF 100%);
    border-radius: 12px;
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.purpose-list li:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 12px var(--shadow-subtle);
}

.purpose-list li i {
    color: var(--primary);
    font-size: 20px;
    margin-top: 2px;
    flex-shrink: 0;
}

.purpose-list li strong {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 4px;
}

.purpose-list li p {
    color: var(--text-secondary);
    font-size: 14px;
    margin: 0;
}

/* Notice Box */
.notice-box {
    background: linear-gradient(135deg, #FFF5ED 0%, #FFFBF7 100%);
    padding: 24px;
    border-radius: 12px;
    border-left: 4px solid var(--primary);
    margin-top: 20px;
}

.notice-box h4 {
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.notice-box h4 i {
    color: var(--primary);
}

.notice-box p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 14px;
}

.disclosure-list li {
    padding: 8px 0 8px 24px;
    position: relative;
}

.disclosure-list li i {
    position: absolute;
    left: 0;
    top: 12px;
    color: var(--primary);
}

/* Vendor List */
.vendor-list li {
    padding: 12px 16px;
    margin-bottom: 8px;
    background-color: var(--white);
    border-radius: 8px;
    border: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
}

.vendor-list li:hover {
    background: linear-gradient(135deg, #FFFBF7 0%, #FFFFFF 100%);
    transform: translateX(4px);
}

.vendor-list li i {
    color: var(--primary);
    font-size: 18px;
    width: 24px;
    text-align: center;
}

/* Security Grid */
.security-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.security-card {
    background: linear-gradient(135deg, #FFFBF7 0%, #FFFFFF 100%);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--border-light);
    text-align: center;
    transition: var(--transition);
}

.security-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px var(--shadow-medium);
}

.security-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.security-icon i {
    font-size: 28px;
    color: var(--white);
}

.security-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.security-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Retention Table */
.retention-table {
    margin-top: 20px;
    overflow-x: auto;
}

.retention-table table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-light);
}

.retention-table th {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    color: var(--white);
    padding: 16px;
    text-align: left;
    font-weight: 600;
    font-size: 14px;
}

.retention-table td {
    padding: 16px;
    border-bottom: 1px solid var(--border-light);
    color: var(--text-primary);
    font-size: 14px;
}

.retention-table tr:last-child td {
    border-bottom: none;
}

.retention-table tr:hover {
    background-color: #FFFBF7;
}

/* Rights Grid */
.rights-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.rights-card {
    background: linear-gradient(135deg, #FFFBF7 0%, #FFFFFF 100%);
    padding: 24px;
    border-radius: 12px;
    border: 1px solid var(--border-light);
    position: relative;
    transition: var(--transition);
}

.rights-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px var(--shadow-medium);
}

.rights-number {
    position: absolute;
    top: -12px;
    left: 20px;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 4px 8px var(--shadow-subtle);
}

.rights-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    margin-top: 12px;
}

.rights-card p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Contact Box */
.contact-box {
    background: linear-gradient(135deg, #FFFBF7 0%, #FFF5ED 100%);
    padding: 32px;
    border-radius: 16px;
    border: 2px solid var(--primary-light);
    margin-top: 20px;
}

.contact-box h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 24px;
    text-align: center;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 24px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-item i {
    color: var(--primary);
    font-size: 24px;
    margin-top: 4px;
}

.contact-item strong {
    display: block;
    color: var(--text-primary);
    font-size: 14px;
    margin-bottom: 4px;
}

.contact-item p {
    color: var(--text-secondary);
    font-size: 15px;
    margin: 0;
}

.contact-note {
    font-size: 13px;
    color: var(--text-secondary);
    padding-top: 16px;
    border-top: 1px solid var(--border-light);
    line-height: 1.8;
}

/* Acknowledgment Box */
.acknowledgment-box {
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    padding: 40px;
    border-radius: 16px;
    text-align: center;
}

.acknowledgment-box h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.acknowledgment-box h3 i {
    color: var(--white);
}

.acknowledgment-box p {
    color: var(--white);
    font-size: 15px;
    line-height: 1.8;
    margin: 0;
}

/* Back to Home */
.back-to-home {
    text-align: center;
    margin-top: 60px;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    color: var(--white);
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(212, 165, 116, 0.3);
}

.btn-back:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(212, 165, 116, 0.4);
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: linear-gradient(180deg, var(--primary-dark) 0%, var(--text-primary) 100%);
    color: var(--white);
    padding: 48px 0 24px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-brand .logo-image {
    width: 50px;
    height: 50px;
    mix-blend-mode: screen;
    opacity: 0.9;
}

.footer-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.footer-title {
    font-family: var(--font-secondary);
    font-size: 20px;
    font-weight: 700;
    color: var(--white);
}

.footer-subtitle {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-column h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--white);
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 13px;
    margin-bottom: 8px;
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--white);
    transform: translateX(4px);
}

.footer-bottom {
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 13px;
}

/* ===================================
   Utility Classes
   =================================== */
.mb-16 {
    margin-bottom: 16px;
}

.mt-16 {
    margin-top: 16px;
}

.mt-24 {
    margin-top: 24px;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 768px) {
    .container {
        padding: 0 16px;
    }

    .header .container {
        flex-direction: column;
        gap: 12px;
    }

    nav {
        gap: 16px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .nav-link {
        font-size: 13px;
    }

    .privacy-main {
        padding: 40px 0 60px;
    }

    .privacy-header {
        padding: 30px 16px;
        margin-bottom: 40px;
    }

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

    .page-subtitle {
        font-size: 14px;
    }

    .section-title {
        font-size: 22px;
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .article-number {
        font-size: 13px;
        min-width: 70px;
        height: 32px;
    }

    .section-content {
        padding: 24px 20px;
    }

    .security-grid,
    .rights-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .footer-content {
        flex-direction: column;
        gap: 32px;
    }

    .footer-links {
        flex-direction: column;
        gap: 24px;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 28px;
    }

    .section-title {
        font-size: 20px;
    }

    .section-content {
        padding: 20px 16px;
    }

    .intro-box,
    .contact-box {
        padding: 24px 20px;
    }

    .acknowledgment-box {
        padding: 32px 20px;
    }

    .btn-back {
        padding: 12px 24px;
        font-size: 14px;
    }
}