* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Refined Color System */
    --primary-dark: #0a0f1c;
    --primary-navy: #0f1929;
    --secondary-dark: #1a2332;
    --accent-gold: #c9a961;
    --accent-gold-subtle: rgba(201, 169, 97, 0.08);
    --text-primary: #ffffff;
    --text-secondary: #a8b2c1;
    --text-muted: #6b7280;
    --border-color: rgba(168, 178, 193, 0.1);
    --glass-bg: rgba(255, 255, 255, 0.03);

    /* Typography - CVR Optimized */
    --font-heading: 'Noto Serif JP', serif;
    --font-body: 'Noto Sans JP', sans-serif;

    /* Spacing System */
    --section-padding: 100px;
    --container-padding: 24px;
}

body {
    font-family: var(--font-body);
    font-weight: 300;
    color: var(--text-primary);
    background: var(--primary-dark);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
}

/* ========== Typography ========== */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.3;
}

/* Header */
header {
    background: rgba(10, 15, 28, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: 0.02em;
}

.nav-menu {
    display: flex;
    gap: 32px;
    list-style: none;
    align-items: center;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: var(--accent-gold);
}

/* Main Content */
.privacy-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 80px 24px;
}

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

.privacy-header h1 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--text-primary), var(--accent-gold));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.last-updated {
    color: var(--text-secondary);
    font-size: 14px;
}

.privacy-content {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
    margin-bottom: 40px;
}

.privacy-section {
    margin-bottom: 40px;
}

.privacy-section h2 {
    font-family: var(--font-heading);
    font-size: 24px;
    color: var(--accent-gold);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.privacy-section h3 {
    font-size: 18px;
    color: var(--text-primary);
    margin-top: 24px;
    margin-bottom: 12px;
}

.privacy-section p {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.privacy-section ul {
    margin-left: 24px;
    margin-bottom: 16px;
}

.privacy-section li {
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.contact-info {
    background: var(--secondary-dark);
    border-radius: 12px;
    padding: 24px;
    margin-top: 20px;
}

.contact-info h4 {
    color: var(--accent-gold);
    margin-bottom: 12px;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 8px;
}

/* ========== CTA Buttons - Psychology Optimized ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-body);
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-diagnostic {
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--accent-gold), #d4b576);
    color: #000000;
    font-size: 14px;
    letter-spacing: 0.02em;
    box-shadow: 0 4px 14px rgba(201, 169, 97, 0.3);
}

.btn-diagnostic:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(201, 169, 97, 0.4);
}

.btn-contact {
    padding: 10px 24px;
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    font-size: 14px;
}

.btn-contact:hover {
    background: var(--glass-bg);
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.nav-cta {
    display: flex;
    gap: 16px;
    margin-left: 20px;
}

/* ========== Footer ========== */
footer {
    background: var(--primary-dark);
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
}

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

.footer-brand {
    font-family: var(--font-heading);
    font-size: 20px;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

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

.footer-copyright {
    font-size: 13px;
    color: var(--text-muted);
    opacity: 0.7;
}

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

/* Responsive */
@media (max-width: 768px) {
    .privacy-content {
        padding: 24px;
    }

    .privacy-section h2 {
        font-size: 20px;
    }

    .nav-menu {
        display: none;
    }
}