:root {
    --up-bg: #f0f4f8;
    --up-text: #2d3748;
    --up-primary: #3182ce; /* Bright Blue */
    --up-success: #38a169; /* Green */
    --up-card: #ffffff;
    --up-border: #e2e8f0;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    background-color: var(--up-bg); color: var(--up-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
}

.up-container { max-width: 1000px; margin: 0 auto; padding: 0 30px; }

/* Header */
.up-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px 0; border-bottom: 2px solid var(--up-border);
    margin-bottom: 50px;
}
.up-brand {
    font-size: 24px; font-weight: 800; color: var(--up-primary);
    display: flex; align-items: center; gap: 10px;
}
.up-brand::before { content: '🔄'; font-size: 28px; }
.up-nav { display: flex; gap: 20px; }
.up-nav a {
    color: #4a5568; text-decoration: none; font-weight: 600;
    padding: 8px 16px; border-radius: 20px; transition: all 0.3s;
}
.up-nav a:hover, .up-nav a.active {
    background: var(--up-primary); color: #fff;
}

/* Hero */
.up-hero {
    text-align: center; margin-bottom: 60px; padding: 60px 20px;
    background: var(--up-card); border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}
.up-hero h1 { font-size: 36px; color: var(--up-text); margin-bottom: 15px; }
.up-hero p { font-size: 18px; color: #718096; margin-bottom: 30px; }

.btn-up {
    display: inline-block; padding: 14px 35px; font-size: 16px; font-weight: bold;
    color: #fff; background: var(--up-success); border-radius: 8px;
    text-decoration: none; transition: background 0.3s;
    box-shadow: 0 4px 14px rgba(56, 161, 105, 0.4);
}
.btn-up:hover { background: #2f855a; transform: translateY(-2px); }

/* Update Highlights */
.up-highlights { margin-bottom: 80px; }
.up-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.up-card {
    background: var(--up-card); padding: 30px; border-radius: 10px;
    border: 1px solid var(--up-border); text-align: center;
}
.up-icon { font-size: 32px; margin-bottom: 15px; color: var(--up-primary); }
.up-card h3 { font-size: 18px; margin-bottom: 10px; color: var(--up-text); }
.up-card p { font-size: 14px; color: #718096; }

/* Status Box */
.up-status {
    background: #ebf8ff; border: 1px solid #bee3f8; border-radius: 10px;
    padding: 30px; text-align: center; margin-bottom: 80px;
}
.up-status h2 { color: #2b6cb0; margin-bottom: 10px; font-size: 24px;}
.up-status p { color: #3182ce; font-size: 16px;}
.version-badge {
    display: inline-block; background: var(--up-primary); color: #fff;
    padding: 5px 15px; border-radius: 20px; font-weight: bold; margin-top: 15px;
}

/* FAQ */
.up-faq { margin-bottom: 80px; }
.up-faq h2 { font-size: 26px; text-align: center; margin-bottom: 40px; }
.u-faq-item {
    background: var(--up-card); padding: 20px; border-radius: 8px;
    margin-bottom: 20px; border: 1px solid var(--up-border);
}
.u-fq { font-weight: bold; color: var(--up-primary); margin-bottom: 10px; font-size: 16px;}
.u-fa { color: #4a5568; font-size: 15px;}

footer {
    text-align: center; padding: 30px 0; color: #a0aec0; font-size: 14px;
    border-top: 1px solid var(--up-border);
}

@media (max-width: 768px) {
    .up-header { flex-direction: column; gap: 15px; }
    .up-grid { grid-template-columns: 1fr; }
}