/* ====================================
   Resonance — Static Site Styles
   ==================================== */

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

html {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    background-color: #0a0a0a;
    color: #e0e0e0;
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 760px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.site-header {
    padding: 32px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 22.5%;
    object-fit: cover;
}

.logo-text {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: #ffffff;
}

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

/* Hero */
.hero {
    padding: 120px 0 80px;
    text-align: center;
}

.hero-title {
    font-size: 48px;
    font-weight: 600;
    letter-spacing: -0.03em;
    color: #ffffff;
    margin-bottom: 20px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 20px;
    color: #a0a0a0;
    font-weight: 400;
    max-width: 600px;
    margin: 0 auto;
}

/* Sections */
.section {
    padding: 60px 0;
}

/* Card */
.card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 48px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

@supports not (backdrop-filter: blur(20px)) {
    .card {
        background: rgba(20, 20, 20, 0.95);
    }
}

.card h3 {
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: #ffffff;
    margin-bottom: 20px;
}

.card h4 {
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: #ffffff;
    margin-bottom: 8px;
}

.card p {
    color: #c0c0c0;
    margin-bottom: 16px;
}

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

.card ul {
    list-style: none;
}

.card ul li {
    color: #c0c0c0;
    padding-left: 24px;
    margin-bottom: 12px;
    position: relative;
}

.card ul li:before {
    content: '·';
    position: absolute;
    left: 8px;
    color: #666;
    font-size: 24px;
    line-height: 1.6;
}

.note {
    font-size: 14px;
    color: #888;
    margin-top: 24px;
}

/* Feature List */
.feature-list {
    margin-top: 24px;
}

/* Skins Grid */
.skins-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    margin: 32px 0;
}

.skin-item p {
    margin-bottom: 0;
}

/* Privacy Content */
.privacy-content h2 {
    font-size: 36px;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: #ffffff;
    margin-bottom: 8px;
}

.privacy-content h3 {
    font-size: 24px;
    margin-top: 40px;
    margin-bottom: 16px;
}

.privacy-content .updated {
    font-size: 14px;
    color: #888;
    margin-bottom: 40px;
}

.privacy-content ul {
    margin-top: 16px;
    margin-bottom: 16px;
}

.privacy-content a {
    color: #6ba3ff;
    text-decoration: none;
}

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

/* Footer */
.site-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 48px 0;
    margin-top: 80px;
    text-align: center;
}

.site-footer p {
    color: #888;
    font-size: 14px;
    margin-bottom: 8px;
}

.footer-nav {
    margin: 16px 0;
}

.footer-nav a {
    color: #a0a0a0;
    text-decoration: none;
    font-size: 14px;
    margin: 0 12px;
    transition: color 0.2s ease;
}

.footer-nav a:hover {
    color: #ffffff;
}

.app-status {
    margin-top: 16px;
    font-size: 13px;
    color: #666;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .hero {
        padding: 80px 0 60px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .card {
        padding: 32px 24px;
    }

    .card h3 {
        font-size: 24px;
    }

    .card h4 {
        font-size: 18px;
    }

    .section {
        padding: 40px 0;
    }

    .site-header {
        padding: 24px 0;
    }

    .privacy-content h2 {
        font-size: 28px;
    }

    .privacy-content h3 {
        font-size: 20px;
    }
}

@media (min-width: 769px) {
    .skins-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .card {
        padding: 24px 20px;
    }
}