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

body {
    background: #0a0a0f;
    color: #e0e0e0;
    font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
    line-height: 1.8;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
header {
    text-align: center;
    padding: 80px 0 40px;
}

.glow-ring {
    width: 120px;
    height: 120px;
    margin: 0 auto 32px;
    border-radius: 50%;
    border: 2px solid transparent;
    background: radial-gradient(circle, rgba(128, 0, 255, 0.1), transparent 70%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    animation: glow-rotate 8s linear infinite;
}

.glow-ring::before {
    content: "";
    position: absolute;
    inset: -2px;
    border-radius: 50%;
    background: conic-gradient(#8b00ff, #ff0044, #8b00ff);
    mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 2px));
    -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 2px));
    animation: glow-rotate 8s linear infinite;
}

@keyframes glow-rotate {
    to { transform: rotate(360deg); }
}

.formula {
    font-size: 24px;
    color: rgba(180, 100, 255, 0.9);
    font-weight: 300;
    letter-spacing: 2px;
}

h1 {
    font-size: 42px;
    font-weight: 700;
    background: linear-gradient(135deg, #8b00ff, #ff0044, #ff8800);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    margin-bottom: 8px;
}

.subtitle {
    font-size: 14px;
    color: #888;
    letter-spacing: 6px;
}

/* Hero */
.hero {
    text-align: center;
    padding: 40px 0 60px;
}

.tagline {
    font-size: 18px;
    color: #bbb;
    line-height: 2;
}

/* Features */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    padding: 40px 0;
}

.feature {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    padding: 28px 20px;
    transition: border-color 0.3s;
}

.feature:hover {
    border-color: rgba(139, 0, 255, 0.3);
}

.feature .emoji {
    font-size: 32px;
    display: block;
    margin-bottom: 12px;
}

.feature h3 {
    font-size: 16px;
    color: #fff;
    margin-bottom: 8px;
}

.feature p {
    font-size: 13px;
    color: #999;
    line-height: 1.7;
}

/* Download */
.download {
    text-align: center;
    padding: 60px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.download h2 {
    font-size: 24px;
    color: #fff;
    margin-bottom: 24px;
}

.coming-soon {
    display: inline-block;
    padding: 14px 40px;
    border: 1px solid rgba(139, 0, 255, 0.4);
    border-radius: 8px;
    color: rgba(139, 0, 255, 0.8);
    font-size: 16px;
    background: rgba(139, 0, 255, 0.05);
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

footer nav {
    margin-bottom: 20px;
}

footer nav a {
    color: #888;
    text-decoration: none;
    font-size: 14px;
    margin: 0 16px;
    transition: color 0.2s;
}

footer nav a:hover {
    color: #b464ff;
}

.copyright {
    font-size: 12px;
    color: #555;
    margin-bottom: 8px;
}

.contact {
    font-size: 12px;
    color: #555;
}

.contact a {
    color: #888;
    text-decoration: none;
}

.contact a:hover {
    color: #b464ff;
}

/* Page styles (privacy, support) */
.page-content {
    padding: 60px 0;
}

.page-content h1 {
    font-size: 28px;
    background: none;
    -webkit-text-fill-color: #fff;
    color: #fff;
    margin-bottom: 40px;
    text-align: center;
}

.page-content h2 {
    font-size: 18px;
    color: #ddd;
    margin: 32px 0 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.page-content p,
.page-content ul {
    font-size: 14px;
    color: #999;
    margin-bottom: 16px;
}

.page-content ul {
    padding-left: 24px;
}

.page-content li {
    margin-bottom: 8px;
}

.page-content a {
    color: #b464ff;
    text-decoration: none;
}

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

.back-link {
    display: inline-block;
    margin-bottom: 32px;
    color: #888;
    text-decoration: none;
    font-size: 14px;
}

.back-link:hover {
    color: #b464ff;
}

.last-updated {
    font-size: 12px;
    color: #555;
    text-align: right;
    margin-top: 40px;
}