body, html {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: radial-gradient(circle at top, #f8fafc, #edf2f7);
    color: #1a202c;
    box-sizing: border-box;
}

.app-header {
    padding: 30px 20px 10px 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-title {
    color: #2d3748;
    margin: 0;
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -1px;
    text-transform: uppercase;
}

.app-main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.app-wrapper {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.app-wrapper:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
}

.app-wrapper {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 24px;
    box-shadow:
            0 20px 40px -10px rgba(0, 0, 0, 0.1),
            0 10px 20px -5px rgba(0, 0, 0, 0.04);
    width: 100%;
    max-width: 900px;
    box-sizing: border-box;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.app-footer {
    padding: 20px;
    display: flex;
    justify-content: center;
    gap: 50px;
    color: #4a5568;
}

.footer-section {
    display: flex;
    gap: 8px;
    font-size: 0.95rem;
}

.footer-label {
    font-weight: 700;
    color: #2d3748;
}
.graph-title {
    text-align: center;
    color: #2d3748;
    font-size: 1.8rem;
    font-weight: 800;
    margin-top: 0;
    margin-bottom: 30px;
    letter-spacing: -0.5px;
}


@media (max-width: 600px) {
    .graph-title {
        font-size: 1.4rem;
        margin-bottom: 20px;
    }
    .header-title {
        font-size: 1.6rem;
    }
    .app-wrapper {
        padding: 20px 15px;
        border-radius: 16px;
    }
    .app-footer {
        flex-direction: column;
        align-items: center;
        gap: 12px;
        padding-bottom: 30px;
    }
}