:root {
    --bg-body: #0b0e14;
    --bg-surface: #141a24;
    --bg-card: #1e2632;
    --bg-header: #0f141e;
    --text-primary: #e8edf5;
    --text-secondary: #8b9bb5;
    --text-muted: #5a6a82;
    --accent: #6c8cff;
    --accent-hover: #7f9cff;
    --border-color: #2a3342;
    --radius: 1.2rem;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg-body);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
}

.app-header {
    background: var(--bg-header);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(8px);
}

.app-header .container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--accent), #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.app-main {
    flex: 1;
    padding: 2.5rem 0;
}

.hero {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeUp 0.6s ease-out;
}

.hero h2 {
    font-size: 2.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #e8edf5, #a0b8d9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 1.8rem;
}

.status-card {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    background: var(--bg-card);
    padding: 0.7rem 2rem;
    border-radius: 60px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    font-size: 1.1rem;
    margin-top: 0.5rem;
}

.status-card .label {
    color: var(--text-secondary);
}

.status-indicator {
    font-weight: 600;
    padding: 0.2rem 0.8rem;
    border-radius: 30px;
    transition: all 0.3s ease;
}

.status-indicator.online {
    background: #1a3a2a;
    color: #7ee0a8;
}

.status-indicator.offline {
    background: #3a1a1a;
    color: #f8a0a0;
}

.status-indicator.checking {
    background: #1e2632;
    color: var(--text-secondary);
}

.app-footer {
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    background: var(--bg-header);
    margin-top: 1rem;
}

@keyframes fadeUp {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 640px) {
    .hero h2 {
        font-size: 2rem;
    }
}