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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Apple SD Gothic Neo', 'Noto Sans KR', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #ffffff;
}

body:has(.container:not(.privacy-container)) {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-attachment: fixed;
}

body:has(.privacy-container) {
    background: #f8f9fa;
}

body:has(.privacy-container) .privacy-container {
    margin-top: 0;
}

.container {
    text-align: center;
}

.logo {
    font-size: 8rem;
    font-weight: 700;
    color: white;
    letter-spacing: 0.1em;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    margin-bottom: 2rem;
}

.links {
    margin-top: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.links a {
    color: white;
    text-decoration: none;
    font-size: 1.2rem;
    opacity: 0.9;
    transition: opacity 0.3s;
}

.links a:hover {
    opacity: 1;
    text-decoration: underline;
}

.link-separator {
    color: white;
    opacity: 0.6;
    font-size: 1.2rem;
}

/* Apps Section */
.apps-section {
    margin: 3rem 0;
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.app-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2.5rem 3rem;
    min-width: 280px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.app-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 1);
}

.stillme-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(255, 240, 245, 0.95) 100%);
}

.stillme-card:hover {
    background: linear-gradient(135deg, rgba(255, 255, 255, 1) 0%, rgba(255, 240, 245, 1) 100%);
}

.app-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    display: block;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.app-title {
    font-size: 2rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 0.5rem;
    letter-spacing: 0.05em;
}

.app-description {
    font-size: 1rem;
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.app-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.app-link {
    color: #667eea;
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

.app-link:hover {
    color: #764ba2;
    background: rgba(102, 126, 234, 0.1);
    transform: scale(1.05);
}

.app-link-separator {
    color: #ccc;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .logo {
        font-size: 4rem;
    }
    
    .links a {
        font-size: 1rem;
    }

    .app-card {
        padding: 2rem 2rem;
        min-width: 250px;
    }

    .app-title {
        font-size: 1.5rem;
    }

    .app-icon {
        font-size: 3rem;
    }
}

/* Privacy Policy Page Styles */
.privacy-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 2rem;
    background: white;
}

.privacy-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f0f0f0;
}

.privacy-header h1 {
    color: #667eea;
    font-size: 2.5em;
    margin-bottom: 10px;
    font-weight: 700;
}

.last-updated {
    color: #666;
    font-size: 0.9em;
}

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

.privacy-main section {
    margin-bottom: 35px;
}

.privacy-main section.intro {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 40px;
}

.privacy-main section h2 {
    color: #667eea;
    font-size: 1.8em;
    margin-bottom: 15px;
    margin-top: 30px;
    font-weight: 600;
}

.privacy-main section h2:first-child {
    margin-top: 0;
}

.privacy-main section h3 {
    color: #764ba2;
    font-size: 1.3em;
    margin-top: 20px;
    margin-bottom: 10px;
    font-weight: 600;
}

.privacy-main section p {
    margin-bottom: 15px;
    color: #555;
    font-size: 1.05em;
    line-height: 1.8;
}

.privacy-main section ul {
    margin-left: 25px;
    margin-bottom: 15px;
    color: #555;
}

.privacy-main section ul li {
    margin-bottom: 8px;
    line-height: 1.7;
}

.privacy-main section ul ul {
    margin-top: 8px;
    margin-left: 20px;
}

.privacy-main section ol {
    margin-left: 25px;
    margin-bottom: 15px;
    color: #555;
}

.privacy-main section ol li {
    margin-bottom: 8px;
    line-height: 1.7;
}

.privacy-main section ol ul {
    margin-top: 8px;
    margin-left: 20px;
}

.privacy-main section strong {
    color: #667eea;
}

.privacy-footer {
    text-align: center;
    padding-top: 30px;
    border-top: 2px solid #f0f0f0;
    color: #666;
    font-size: 0.9em;
}

.privacy-footer a {
    color: #667eea;
    text-decoration: none;
}

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

@media (max-width: 768px) {
    .privacy-container {
        padding: 20px 1rem;
    }

    .privacy-header h1 {
        font-size: 2em;
    }

    .privacy-main section h2 {
        font-size: 1.5em;
    }

    .privacy-main section h3 {
        font-size: 1.2em;
    }
}